Question

In chickens, the dominant allele Cr produces the creeper phenotype (short legs). However, the creeper allele...

In chickens, the dominant allele Cr produces the creeper phenotype (short legs). However, the creeper allele is lethal in the homozygous condition. If two creepers are mated, what proportion of the living progeny will be creepers?

0 0
Add a comment Improve this question Transcribed image text
Answer #1

two third would be creepers , 2/3

1/4 would die due to homozygous condition and one third would be homozygous recessive

Add a comment
Know the answer?
Add Answer to:
In chickens, the dominant allele Cr produces the creeper phenotype (short legs). However, the creeper allele...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • In chickens, the creeper phenotype is characterized by shortened legs and wings. Affected chickens cannot walk...

    In chickens, the creeper phenotype is characterized by shortened legs and wings. Affected chickens cannot walk normally and have to creep along. Creeper chickens are heterozygous for he creeper allele, C. In the homozygous state, C disrupts embryological development and lead to death of the chicken before hatching a. What are the expected genotypic and phenotypic ratios from the cross of two creeper chickens? b. Is the creeper allele dominant or recessive for leg shape? Explain. C. Is the creeper...

  • 27. Heterozygous Cp cp chickens express a condition called creeper, in which the leg and wing...

    27. Heterozygous Cp cp chickens express a condition called creeper, in which the leg and wing bones are shorter than normal (cp cp). The dominant Cp allele is lethal when homozygous. Two alleles of an independently segregating gene determine white (W_) versus yellow (ww) skin color. From a mating between chickens heterozygous for both genes, what phenotypic classes will be represented among the viable progeny, and what are their expected relative frequencies? Please show using the branch diagram method.

  • please give an explanation! (4 pts) A heterozygous genetic condition called "creeper" in chickens produces shortened...

    please give an explanation! (4 pts) A heterozygous genetic condition called "creeper" in chickens produces shortened and deformed legs and wings, giving the bird a squatty appearance. Matings between creepers produced 775 creepers : 388 normal progeny a) Is the genetic hypothesis of a 3 creeper:1 normal ratio acceptable? Use a chi-squared test to support and explain your answer. Make sure to state the following: genetic hypothesis, null hypothesis, work and calculations to calculate X2, the critical value: X.p.df, and...

  • 1.) Black hair in rabbits is determined by a dominant allele, B, and white hair by...

    1.) Black hair in rabbits is determined by a dominant allele, B, and white hair by homozygosity for a recessive allele, b. Two heterozygous rabbits mate and produce a litter of five offspring. With what frequency would we expect to find: A.) two whites and three black offspring B.) four white and one black offspring. 2.) In families of size 7 offspring, what is the probability of finding the third offspring to be male and the oldest to be female?...

  • In hogs, and allele that produces a white belt around the animals body (W) is dominant...

    In hogs, and allele that produces a white belt around the animals body (W) is dominant over its allele for a uniformly colored body (w). The dominant allele of another gene (F) produces a fusion of the two hoofs on each foot. Suppose a uniformly-colored hog homozygous with fused hoofs is mated with a normal-footed homozygous for the belted character. what are the genotypes of the parents? belted parent: Uniformly-colored parent: What are the genotypic and phenotypic ratios in the...

  • In cats, curled ears result from an allele (Cu) that is dominant over an allele (cu)...

    In cats, curled ears result from an allele (Cu) that is dominant over an allele (cu) for normal ears. Black color results from an independently assorting allele (G) that is dominant over an allele for gray (g). A gray cat homozygous for curled ears is mated with a homozygous black cat with normal ears. All the F1 cats are black and have curled ears. a. If two of the F1 cats mate, what phenotypes and proportions are expected in the...

  • In horses, the color black is due to a dominant allele (B) and chestnut color is...

    In horses, the color black is due to a dominant allele (B) and chestnut color is due to a recessive allele (b) of the same gene. The trotting gate is due to a dominant allele (T) and the pacing gate is due to the recessive allele (t) of the same gene. These two genes are located on different chromosomes. A homozygous black pacer horse mates with a homozygous, chestnut trotting horse and they have a daughter. a. What are the...

  • In a certain plant, a dominant allele for one gene, R, produces round fruit and the...

    In a certain plant, a dominant allele for one gene, R, produces round fruit and the recessive allele, r, produces oblong fruit. A dominant allele of a second gene, Y, produces yellow flowers and the recessive allele, y, produces white flowers. The two genes are linked on chromosome IV. A plant ( ry / ry ) with normal chromosomes is crossed to a plant (R Y/R Y) homozygous for a reciprocal translocation between chromosomes IV and VIII. The presence of...

  • There is a dwarf allele in cattle. The heterozygote produces calves with legs which are shorter...

    There is a dwarf allele in cattle. The heterozygote produces calves with legs which are shorter than normal. Homozygous recessive calves are normally born stillborn or abort early. Show a cross between a a dwarf bull and a dwarf cows.6M What phenotypic ratio to you expect among the living offspring? IM

  • A tomato plant heterozygous for stem color and fasciation (the dominant alleles linked on the same...

    A tomato plant heterozygous for stem color and fasciation (the dominant alleles linked on the same chromosome) is pollinated by a plant heterozygous for stem color and homozygous recessive for fasciation (that is nonfasciated). 29. What alleles will the sperm carry?_ What alleles will the eggs carry? 30. What are the genotypes of the progeny? What are the phenotypes of the progeny? 31. If the dominant alleles for stem color and fasciation are commonly located on the same chromosome, how...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT