In German cockroaches, bulging eyes, bu, are recessive to normal eyes, bu, and curved wings, cv, are recessive to straight wings, cv. Both traits are encoded by autosomal genes that are linked. A cockroach has genotype bu bu cv cv, and the genes are in repulsion. Which set of genes will be found in the most common gametes produced by this cockroach? + O cv cv bu cv + bu bu + bu cv bu cv + +

In German cockroaches, bulging eyes, bu, are recessive to normal eyes, bu, and curved wings, cv, are recessive to straight wings, cv. Both traits are encoded by autosomal genes that are linked. A cockroach has genotype bu bu cv cv, and the genes are in repulsion. Which set of genes will be found in the most common gametes produced by this cockroach? + O cv cv bu cv + bu bu + bu cv bu cv + +

Name: In German cockroaches, bulging eyes, bu, are recessive to normal eyes
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Description: In German cockroaches, bulging eyes, bu, are recessive to normal eyes, bu, and curved wings, cv, are recessive to straight+++wings, cv Both traits are encoded by autosomal genes that are linked. A cockroach has genotype bu bu cv cv, and the genesare

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter14: Human Inheritance

Section: Chapter Questions

Problem 2GP: Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect...

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In German cockroaches, bulging eyes (bu) are recessive to normal eyes (bu+) and curved wings (cv) are recessive to straight wings (cv+). These two traits are encoded by autosomal genes that are linked. A cockroach has genotype bu+ bu cv+ cv, and the genes are in repulsion. Which of the following sets of genes will be found in the most common gametes produced by this cockroach? a. bu+ cv+ b. bu cv c. bu+ bu d. cv+ cv e. bu cv+ Explain your answer.
In certain salamanders, the sex of a genetic female can be altered, changing her into a functional male; these salamanders are called sex reversed males. When a sex-reversed male is mated with a normal female, approximately 23 of the offspring are female and 13 are male. How is sex determined in these salamanders? Explain the results of this cross
In German cockroaches, bulging eyes (bu) are recessive to normal eyes (bu+), and curved wings (cv) are recessive to straight wings (cv+). These two traits are encoded by autosomal genes that are linked. A cockroach has genotype bu+bu cv+cv, and the genes are in repulsion. Which of the following sets of genes will be found in the most common gametes produced by this cockroach?a. bu+cv+b. bucvc. bu+bud. cv+cve. bu cv+please explain!
Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect to X-linked alleles, how many different types of gametes can a male produce? b. A female homozygous for an X-linked allele can produce how many types of gametes with respect to that allele? c. A female heterozygous for an X-linked allele can produce how many types of gametes with respect to that allele?
Males of many diploid species (like us) have X and Y sex chromosomes. They are hemizygous for most X- linked genes. Thus, males express most X-linked alleles, whether they are dominant or recessive in females. In the fruit fly Drosophila, it is common to achieve the equivalent of a test cross of X-linked genes in females by assessing the readily observed phenotypes of their male progeny. Since males do not receive X-linked genes from their father, sires of these crosses can be normal or wild-type flies. In fly genetics, it is conventional to name a gene after the mutant phenotype that enabled its discovery. Your challenge is to establish gene order and map distances between three X-linked genes in Drosophila. Each gene is represented by recessive mutant alleles that express rather distinctive phenotypes relative to their dominant wild-type alternative alleles. Flies expressing fruitless (f) are bisexual, lush (1) have a heightened responses to ethanol, and ken&barbie (kb) lack external…
In Drosophila melanogaster white (w) and miniature (m) wings are controlled by X-linked recessive genes with a recombination fruequency between them of approximately 38%. Show the sexes, phenotypes and proportions of offspring expected from the following mating:a. ++/wm female X wm maleb. +m/w+ female X w+ malec. w+/+m female X ++ maleIf we assume that white eyes and miniature wings are not x-linked but are linkedto the autosomal genes, what phenotypic frequencies would you expect from this cross: ++/wm female X ++/wm male?
Sex determination in birds is different from that in humans. The sex chromosomes in birds are called Z and W, because males have two of the same chromosome (ZZ), whereas females have two different chromosomes (ZW). There is a Z-linked allele in some birds that causes the death of the embryo when the normal dominant allele is not present. What would be the sex ratio in the living offspring of a cross between a male heterozygous for the lethal allele and a normal female? A) What are the genotypes of the parents? Male____ Female____ B) Which gametes would each form? Male____ Female____ C) Draw your Punnett square below and determine the sex ratios of living offspring.
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If you fertilize an adult female which is mosaic gonads (y w sn3 and mhw e gametes) with an adult male with (y w sn3 gametes) what are the genotype of parents? If thay produced 10-20% wild phenotype and 80-90% y w sn3 phenotype. And explain it
Because of non-disjunction in some stocks of Drosophila. melanogaster, about 1 in 65,000 egg cells have two copies of the X chromosome and about 1 in 375 egg cells have no X chromosome. Assuming that meiosis in males is ‘always normal', what is the expected frequency of XXX females and XO males arising from any number of fertilized eggs? Do not be concerned as to whether it is lethal or not.
Drosophila have XX/XY sex determination systems just like mammals. In Drosophila, loci for both eye color and body color are on the X chromosome. Red eye color (R) is dominant to white eye color (r), and tan body color (T) is dominant to yellow body color (t). Which of the following is the genotype for a female with a yellow body and red eyes, who is homozygous for eye color? Group of answer choices XRT XrT XRt XRT XRt XRt XRt XRT
An Agouti with Himalayan gene female rabbit was mated by an albino male. The phenotypes for the filial generation are...