In some chickens, the gene for feather color is controlled by two alleles. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette (black and white spotted). Two erminette chickens were crossed. Write the parent's genotypes and show the possible offspring from working a Punnett square. X a. What are the possible genotypes and phenotypes of their offspring, and the percent chance for each? b. What type of dominance do these birds follow?
Answers
The two erminette chickens are heterozygous for the gene that controls feather color, so their genotypes are:
Parent 1: B W (heterozygous erminette)
Parent 2: B W (heterozygous erminette)
To determine the possible genotypes and phenotypes of their offspring, we can use a Punnett square:
| B W
--- +-------
B W | BW WW
--- +-------
W B | WB WW
--- +-------
The possible genotypes are: BB (black), BW (erminette), and WW (white).
The possible phenotypes are: black, erminette (black and white spotted), and white.
The percent chance for each genotype and phenotype can be calculated from the Punnett square. Each box represents a 25% chance, so the probabilities are:
25% chance of BB (black)
50% chance of BW (erminette)
25% chance of WW (white)
25% chance of black feathers
50% chance of erminette (black and white spotted) feathers
25% chance of white feathers
The type of dominance these birds follow is incomplete dominance, where the heterozygous phenotype is an intermediate blend of the two homozygous phenotypes. In this case, the erminette phenotype is a blend of the black and white phenotypes.
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Related Questions
Which illustration of transport across the
membrane requires energy?
Answers
Answer:
answer is on the pic
Explanation:
may be this is helpful!
When the cells start multiplying at an abnormal rate it leads to complications in our body.What could be the reason for this?Find Out
Answers
Answer:
the reason is often cancer.
Explanation:
cancer cells multiply rapidly and cause tumors
How does nitrogen gas make its way into the atmosphere?
O animals eating plants
O decomposition
O using denitrifying bacteria
O cell respiration
Answers
Answer:
Explanation:
Using denitrifying bacteria is the correct answer
Ian is an 18-year-old gymnast training at a private gym with many other male and female gymnasts. he is competing at an advanced level and is likely to make the next Olympic team. Lately, he has found that some of his balance and strength moves on the rings and parallel bars have become more difficult. He has gone through a bit of a growth spurt and gained approximately 5 pounds over the last year. He suspects the weight gain is causing his performance difficulties. He decides to try a weight-loss program that will help him lose weight before his next big competition in 6 weeks. He is not sure how many calories to consume and therefore arbitrarily decides to eat 1,500 calories per day.
1. Which assessments are required to determine whether Ian needs to lose weight?
2. What type of diet and exercise plan would you recommend for Ian?
3. What additional concerns do you have for Ian's health and sport performance?
Answers
Answer:
Explanation:
(1.)
Assessments needed to reduce Ian’s body weight:
A weight-loss program should allow the loss of weight should be fat loss, and the increase of weight should be body muscle mass. Weight reduction should be accompanied by an acceptable exercise regimen (both strength and conditioning). A well-balanced diet with sufficient energy (calories), carbohydrates, protein, and fat should be part of every weight-loss regimen. Excessive exercise resulted in weight loss. Using anorexic medications, laxatives, insulin, diet tablets, stimulants, diuretics, dietary products, or any lawful or illicit drugs and/or nicotine should be banned at all levels.
(2)
type of Diet:
Every day, Ian must eat three meals and just a snack. A fiber-rich cereal with skim milk and fresh fruit can be a better way to start the day.
After that, have a bologna sandwich on the whole bread with fruit or a big vegetable-rich salad together with a small turkey sandwich in addition to a cup of skim milk for lunch.
Poultry hen should be served with potatoes (baked), mixed vegetables, and skim milk for dinner. An early workout snack of a small butter muffin or yogurt combined with cereal should also be included.
Exercise Plan:
i) Bodyweight fat recovery can be supported by proper and secure aerobic activity.
ii) The right kind of aerobic exercise is extremely beneficial for weight loss.
3. Gymnastics is a visually appealing discipline that necessitates speed, strength, and coordination. Most high-level gymnasts eat less than the recommended amount of calories and certain nutrients for their age and training load, according to dietary tests. Young gymnasts, in particular, must absorb enough energy and nutrients to satisfy the demands of growth, exercise, performance, and tissue conservation. Poor energy supply, disordered eating habits, and eating disorders are all factors that can damage a gymnast's long and short-term health. Some gymnasts cross the line into extreme, treatable eating disorders by dieting and using infective weight-loss strategies.
In light of these considerations, Ian should pay attention to his health and diet. Ian should limit his consumption of added sugar intake and increase his fiber intake to help him achieve his body fat targets. Gymnasts can consume at least 1.4–1.8 grams of carbohydrates each pound (3–4 g/kg) per day. Increased protein consumption helps to reduce the amount of muscle lost over a weight-loss cycle. Per day, gymnasts can eat 0.8–1.2 g/lb (1.8–2.7 g/kg) of protein.
Ian would be able to shed weight and prevent an eating disorder in this manner.
You and your friend want to see how changing the type of liquid (e.g. water, milk, orange juice) given to a plant affects how high it grows. What would be the independent variable in this experiment?
SELECT AN ANSWER
1)the type of plant used
2)the temperature of the air
3)the type of liquid
4)the height of the plant
Answers
Answer:Hi! It’s the type of liquid/third answer
Explanation:
This is the independent variable because it’s the component of the experiment that is being changed to measure the results.
what are the different types of nail?
Answers
Answer:
The main seven types of nail shapes you can opt for are: oval, almond, square, squoval, coffin (also known as ballerina), stiletto (or pointed nails) and that old friend, round.
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Answer:
, almond, square, squoval, coffin
Coffee Experiment
Question:
Quantitative data:
blood pressure readings
Qualitative data:
Answers
According to the information we can infer that the correct question would be: What are the different blood pressure readings with differents amount of coffee comsumed?. And the data could be: values between 0 and 120/80 mm Hg.
How to complete the boxes?To complete the boxes we have to consider the information of each one. In this case we have to create a question realted with the comsumption of coffee and its relationship with blood presure. So we can ask about the influence of coffee comsumption in blood pressure.
In this case, we can include the following question and data:
What are the different blood pressure readings with differents amount of coffee comsumed?And the data could be:
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NEED HELP ASAP WILL GIVE BRAINLIST
Which of these is a renewable resource that could become non-renewable with mismanagement?
wind *************************
solar
timber
coal
Answers
Coal
Explanation:
Coal is considered a nonrenewable resource, because it takes millions of years to form.
Why?
Coal, above, is a type of rock that is a fossil fuel. Non-renewable energy comes from sources that will run out or will not be replenished in our lifetimes—or even in many, many lifetimes. Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas. Carbon is the main element in fossil fuels.
Mitosis and meiosis are cell division mechanisms that lead to different numbers of daughter cells. Which explanation best describes how these two processes maintain continuity?
Answers
meiosis :cell division that produces reproductive cells in sexually reproducing organisms
mitosis:cell division in which nucleus divides into nuclei containing the same number of chromosomes
meiosis nucleus divides twice and produces 4 daughter cells which are not genetically the same
mitosis necleus divides ones and produces two daughter cells which are genetically the same
In a dihybrid cross between two pea plants, one parent is green pod-purple flower (GgPp). The other parent’s genotype is unknown. The phenotype f ratio of their offspring is (1 Green Pod-Purple Flower : 1 Yellow Pod-Purple Flower). What is the genotype of the unknown parent?
Answers
The unknown parent's genotype in the dihybrid cross is likely GgPp. This genotype would result in a 1:1 phenotypic ratio of green pod-purple flower to yellow pod-purple flower offspring.
In a dihybrid cross, we consider two independent traits. In this case, the traits are pod color (green or yellow) and flower color (purple). The known parent's genotype is GgPp, where G represents the dominant allele for green pod color, g represents the recessive allele for yellow pod color, P represents the dominant allele for purple flower color, and p represents the recessive allele for non-purple (white) flower color.
Since the phenotypic ratio of the offspring is 1 green pod-purple flower : 1 yellow pod-purple flower, we can infer the possible genotypes of the unknown parent. The observed phenotypic ratio suggests that both parents contribute equally to the offspring's traits. Therefore, the unknown parent likely carries the same genotype, GgPp.When the unknown parent's genotype is GgPp, it means that it can produce two types of gametes: GP and gP. The known parent, GgPp, can also produce two types of gametes: GP and gP. The cross between these parents can result in four possible genotypes for the offspring: GGPp, GgPp, Ggpp, and ggPp. However, only two of these genotypes correspond to the observed phenotypic ratio: GgPp (green pod-purple flower) and ggPp (yellow pod-purple flower).Therefore, the genotype of the unknown parent is likely GgPp, which produces the desired 1:1 phenotypic ratio of green pod-purple flower to yellow pod-purple flower in the offspring.
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how do Euglena reproduce?
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Carlton and Vanessa are lab partners in their biology class. One of their labs was to run the smell test experiment on each other.
When performing the smell test, Vanessa was quite good at noticing a difference between the various intensities of vanilla and also
the various intensities of evergreen. Although Carlton could distinguish what the vanilla and evergreen smells were, he couldn't tell
there was a difference in the intensities in the vanilla or the evergreen. Based on the information presented in this scenario, which
of the following is true?
Vanessa has a more sensitive difference threshold than Carlton.
Carlton has an impaired absolute threshold.
Vanessa has a better absolute threshold than Carlton.
Carlton has the superior performance with respect to the difference threshold.
Vanessa has an impaired absolute threshold.
Answers
Vanessa has a better absolute threshold and more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
Carlton and Vanessa were lab partners for a biology class and were asked to run a smell test experiment on each other.
Vanessa was excellent at noticing the difference between various intensities of vanilla and evergreen.
Carlton, on the other hand, couldn't distinguish the difference in the intensities of both vanilla and evergreen, though he could tell the smells of both.
Hence, based on the information provided in the scenario, it can be inferred that Vanessa has a more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
The two significant aspects that are involved in the scenario are absolute threshold and difference threshold.
The absolute threshold is the smallest quantity of a stimulus that an individual can detect, whereas the difference threshold is the minimum difference in stimuli that an individual can detect.
Carlton could recognize the stimuli's smell but not the difference in the intensity of vanilla and evergreen.
This shows that Carlton has an impaired absolute threshold.
He could not detect the smallest quantity of a stimulus to differentiate between the smells.
Vanessa was quite good at noticing the difference in the intensities of vanilla and evergreen.
This means that Vanessa has a more sensitive difference threshold than Carlton. She could detect the minimum difference in stimuli required to differentiate between smells.
Vanessa also has a better absolute threshold than Carlton as she could detect the smallest quantity of stimulus required to detect the smells.
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What are the stages of bee development (eggs,larvae,pupae)
Answers
The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.
The stages of bee development are:
1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.
2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.
3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.
4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.
It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.
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Retroviruses, such as the human immunodeficiency virus (HIV), carry their genetic information as RNA and convert it to DNA using the enzyme
A. DNA polymerase II.
B. retrograde polymerase.
C. RNA to DNA polymerase.
D. reverse transcriptase.
Answers
RT is referred to as Hiv infection (HIV) and other retroviruses carry their genetic material in the form of RNA, which is then converted to DNA by an enzyme.
What kinds of viruses fall under the retrovirus classification?There are two more retroviruses that can harm humans in addition to the one that causes AIDS, the human immunodeficiency virus (HIV). The first one is referred to as human T-lymphotropic viruses type 1 (HTLV-1), and the second one is referred to as human M o virus type 2. (HTLV-II).
what are The four retroviruses ?Oncoviruses, Lentiviruses, or Spumaviruses make up the three families of retroviruses. A-type, A and, C-type, and D-type retroviruses are categorized as well depending on how they appear under an electron microscope.
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What is the difference in mechanism between protein entry into ER and integration of transmembrane proteins into ER membrane?
Answers
Protein entry into the ER lumen is facilitated by signal sequences present in the proteins whereas transmembrane protein integration into the ER membrane requires transmembrane domains.
Protein entry into the ER lumen (or insertion into the ER membrane) and integration of transmembrane proteins into the ER membrane differ in their mechanism. The following is a description of the differences between these two mechanisms.
Protein entry into the ER lumen is facilitated by signal sequences present in the proteins. Signal sequences, or signal peptides, are short stretches of amino acids located at the N-terminal end of proteins that are destined for the ER lumen or secreted outside the cell. Signal sequences interact with signal recognition particles (SRP), which then transport the protein to the ER membrane. Afterward, the SRP binds to the SRP receptor, and the protein is translocated into the ER lumen. The nascent protein is then translated, modified, and folded in the ER lumen.In contrast to protein entry into the ER lumen, transmembrane protein integration into the ER membrane requires transmembrane domains.
Transmembrane domains are composed of hydrophobic amino acids that cross the hydrophobic lipid bilayer of the membrane. Transmembrane proteins are inserted into the ER membrane through two mechanisms: The first mechanism is the signal anchor sequence, where a stop-transfer anchor sequence retains the protein in the membrane. The second mechanism is the signal peptide cleavage, where signal peptides in the protein cleave after they enter the ER lumen, and the transmembrane domain remains in the membrane. The protein is then translated and folded in the membrane.
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True or false? A prokaryotic cell is more complex than an eukaryotic cell.
Answers
Answer:
False, prokaryotic cell is smaller and less complex, a eukaryotic cell makes their own power plant called mitochondria
Which of these is a density-independent factor. Fire, space, water, food
Answers
Answer:
fire
Explanation:
You find a solid tumor that contains a loss of function mutation in a tumor suppressor gene. You send the samples to a lab for analysis. The lab proposes to use a plasmid vector to add back a wild type copy of this gene in the tumor. Would this scheme work to limit the growth of the tumor cells? Assume that it is possible to deliver the plasmid vector to all tumor cells.
a. No, gene therapy is never used for treatment of human diseases.
b. No, it's a loss of function mutation, so more gene product is not needed.
c. Yes, it would provide a wild type copy of a tumor suppressor gene.
d. Yes, the plasmid would stimulate growth factor production and upregulate cell cycle.
Answers
Answer:
The correct answer is option c, that is, yes, it would provide a copy of wild type of a tumor suppressor gene.
Explanation:
For delivering the wild-type copy of the gene in the cases of loss or decrease of the function of mutation the plasmids can be used efficiently. This makes sure that the wild type copy of the product of the gene is generated within the cell, which can further assist in overcoming the influence of a mutated gene.
A gene, which monitors a cell at the time of cell replication and division is known as an anti-oncogene or a tumor suppressor gene. If the growth of the cell takes place overwhelmingly, it will result in cancer. In case, if a mutation occurs in a tumor suppressor gene, it will lead to a reduction or loss in its function.
Help asp match them
Answers
Source that would be reliable and credible:
Articles written by respected author
article contains citation
article expresses their opinion on the subject
article based on the strong evidence
website registered by government/educational institution.
Source that would not be reliable and credible:
Article is only found on social media.
The article marked as an advisement
author/publisher/organization of article missing
The article includes more than one perspective on the issues
sources are missing
What is mean by credible source ?
A credible source is one that is written by someone who is an expert in their field and is free of errors and biases. This guide explains the difference between reliable, scientific and peer-reviewed sources.
Primary, secondary and tertiary sources provide different types of information.
Immediate : Immediate description of an event or discovery. A source conveys original research, thought or opinion. Secondary : Used event or subject report. Source provides analysis, discussion or overview of elements. Tertiary : Combination of primary and secondary sources. Source provides an overview or summary of other sources.To learn more about credible sources, visit;
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why RNA chain is always transcribed on 3' to 5' template strand ?
Answers
Explanation:
RNA growth is always in the 5′ → 3′ direction: in other words, nucleotides are always added at a 3′ growing tip, . Because of the ANTIPARALLEL nature of the nucleotide pairing, the fact that RNA is synthesized 5′ → 3′ means that the template strand must be oriented 3′ → 5′.
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Suppose that a new species of plant is introduced into a habitat. Describe at least three possible limiting factors that could keep this species from becoming an established part of that ecosystem.
Answers
Answer:
This could be 3 reasons.
Explanation:
1. The plants aren't built enough to sustain harsh climates.
2. The plant is food for animals, and not enough of it growing.
3 Might need a special type of goldy locks weather to be able to grow/live in.
which of the following statements are true for specific gravity measured by the urine chemical reagent strip method? (select all that apply) more than one answer is correct. please select all correct answers the urine chemical reagent strip method is based on the relationship between ionic concentration and specific gravity. the urine chemical reagent strip method is based on the fact that light is refracted in proportion to the amount of total solids dissolved in the urine. the urine chemical reagent strip method is not affected by the presence of x-ray contrast media in the urine specimen.
Answers
The inclusion of x-ray contrast medium in the urine samples has no impact on the urine chemicals and solvents strip technique.
The basis for the test is a correlation between the pKa of a few pretreated electrolytes and the ionic concentration of a urine. Specific Gravity: The apparent pKa change of specific pretreated polyelectrolytes in regards to ionic concentration is the basis for this test. In urine with low ionic concentration, colours range from bright blue to yellow and green in the presence of the an indicator. Use uncentrifuged, freshly mixed urine. To ensure that all test areas are submerged in the specimen, hold the reagent strip by the end that is opposite the test areas.
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An amino acid's unique characteristics is defined by the ________.
Answers
DNA is a process of confirming identity in organism with the help of chromosomes explain vividly
Answers
Answer:
Vividly examples explain commerce complete process is described below in complete details.
Explanation:
Commerce suggests the purchasing and merchandising of goods and services for cash or in character. It is a division of the business. It incorporates all the methods that have to do with the replacement of commodities and services. ... Some statisticians, however, say that it encompasses all business activities and employment.
Based on the discussion in your text, which of the following strategies would effectively
reduce prejudice between groups?
Answers
correct the statment
Answers
Shoots are called crown of the tree
Natural selection is the process by which biological traits either become more or less
apparent within a population. There are certain conditions which are the basis for natural
selection. Which of the following examples best represents the adaptation of a species to its
environment.
A. Some members of a garter snake species are resistant to a toxin produced by one of its food sources and will successfully
reproduce and pass the resistant trait on to their offspring
B. species of crab is living and reproducing successfully near hot hydrothermal vents at the bottom of the Pacific Ocean,
while other crab species are unable to survive there.
C. Male Birds of Paradise inherit brilliant colors which they displayed in elaborate poses or dances in order to catch the
attention of a female mate.
D. Female Loggerhead turtles lay about 100 eggs, which when hatched produce offspring that must make a mad dash to the
ocean before being eaten by predatory sea birds.
Answers
Answer: B. species of crab is living and reproducing successfully near hot hydrothermal vents at the bottom of the Pacific Ocean, while other crab species are unable to survive there.
Explanation: This species of crab adapted to their given habitat, while other couldn’t.
Answer:
B. species of crab is living and reproducing successfully near hot hydrothermal vents at the bottom of the Pacific Ocean, while other crab species are unable to survive there.
Muscle contractions occur when myofibrils
in the muscle shorten and lengthen to make
the muscle contract and extend. Which
types of muscles use these muscle
contractions?
All muscle types
Only smooth muscles.
Answers
Brainliest is appreciated
Mendelian genetics Practice problems
Answers
Assuming complete dominance, 1) green. 2) 1:1. 3) 100%. 4) 1/4 = 25% wingless. 5) C- homozygous recessive. 6) Violet. 7) 0% red flowers. 8) 1:1. 9) SS or Ss. 10) 50% chances.
What is complete dominance?When the dominant allele completely masks the recessive allele, we talk about complete dominance.
This is the case of individuals that are heterozygous for a particular gene and express the dominant trait. The presence of at least one dominant allele is enough to hide the expression of the recessive allele.
To answer the questions, we will assume complete dominance and diallelic genes.
1)
Cross: green parakeet x blue parakeet
F1) 100% green
If all individuals among the offpring are green, we expect green to be the dominant color, coded by a dominant allele inherited by the whole progeny.
Ans: Green is the dominant trait
2)
Cross: heterozygous green parakeet with homozygous blue parakeet
Parentals) Gg x gg
Punnett square) G g
g Gg gg
g Gg gg
F1) Genoytpe: 50% GG and 50% gg
Phenotype: 50% green and 50% blue
Phenotypic and genotypic ratio 1:1
3) Cross: homozygous green parakeet with heterozygous green parakeet
Parentals) GG x Gg
Punnett square) G G
G GG GG
g Gg Gg
F1) Genoytpe: 50% GG and 50% Gg
Phenotype: 100% green
4)
wingless ⇒ recessive trait
winged ⇒ dominant trait
Parentals) WW x ww
Punnett square) W W
w Ww Ww
w Ww Ww
F1) 100% Ww
Parentals) Ww x Ww
Punnett square) W w
W WW Ww
w Ww ww
F2) 1/4 = 25% WW, 2/4 = 50% Ww, 1/4 = 25% ww
3/4 winged, 1/4 wingless
The second cross will be done between heterozygous individuals. Among the F2, 25% of individuals will be wingless.
5) To know if a winged individual is homozygous dominant or heterozygous, the researcher must perform a test-cross, which involves the individual of unkown genotype and a homozygous recessive individual (wingless).
Ans: Homozygous recessive apterous. Option C)
6) Cross: violet flower x red flower
Parentals) VV x vv
Punnett square) V V
v Vv Vv
v Vv Vv
F1) 100% violet flowers
If all individuals among the offpring have violet flowers, we expect violet to be the dominant color, coded by a dominant allele inherited by the whole progeny.
Ans: Violet is the dominant color
7) Cross: homozygous violet with homozygous red
Parentals) VV x vv
Punnett square) V V
v Vv Vv
v Vv Vv
F1) 100% Vv, heterozygous and expressing violet flowers.
Ans: 0% of the progeny will have red flowers.
8) yellow: dominant
white: recessive
Cross: heterozygous butterfly with homozygous recessive one
Parentals) Ss x ss
Punnett square) S s
s Ss ss
s Ss ss
F1) 1/2 = 50% Ss Yellow
1/2 = 50% ss White
Phenotypic ratio 1:1 ⇒1/2 yellow : 1/2 white
9) straight ear: dominant
flop ear: recessive
Genotypes Phenotypes
SS and Ss Straight
ss Flop
A dog with straight ears might be either homozygous dominnat SS or heterozygous Ss.
10) Cross) heterozygous straight-eared dog with flop-eared dog
Parentals) Ss x ss
Punnett square) S s
s Ss ss
s Ss ss
F1) 50% Ss
50% ss
Ans: Yes, there are 50% chances of having puppies with flop ears.
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A scientist finds tools made of rock in the ruins of an ancient home. He also finds burned wood likely cut by the tools in the home’s fire pit. How could the scientist estimate when the tools were made?
Answers
By examining the age of the sediment layers where the stone tools are found, researchers can make an educated guess as to their age. Another method for determining the date the tools were manufactured is radiometric dating.
What is meant by radiometric dating and why is it significant?In radioactive dating, radioactive isotopes are used to establish the age of rocks and minerals. This method is useful for dating volcanic and metamorphic rocks since sedimentary materials cannot be dated using the stratigraphic correlation approach. There are more than 300 isotopes that exist naturally.
To determine when the ax was created, scientists can employ radiometric dating. By measuring the relative ages of certain radioactive elements contained in the sample, radiometric dating is a technique for dating geological and archaeological artifacts.
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