In dogs, coat color is an autosomal dominant trait. The allele for a black coat is B and the allele for a brown coat is b. You crossed two heterozygous dogs. What is the probability that the first pup will have a black coat and the second will have a brown coat? O 1/8 O 3/16 O 3/4 O 1/16 In humans, males and females have the same dosage of X chromosomes. How is this possible if males have one X chromosome but females have two? O Males and females actually have a different dosage of X chromosomes. O In females, one of the X chromosomes is inactivated into a small Barr body. O In males, one of the X chromosomes is inactivated into a small Barr body. Snail shell coiling demonstrates the genetic maternal effect. A male snail that has dextral coiling (Ss) mates with a female snail with sinistral coiling (ss). Dextral coiling is dominant to sinistral coiling. The F1 generation is produced and then crossed to produce F2. What is the phenotypic ratio of the F2 generation? O 1 dextral: 3 sinistral O 1 dextral: 1 sinistral O All dextral O 3 dextral: 1 sinistral O All sinistral

In dogs, coat color is an autosomal dominant trait. The allele for a black coat is B and the allele for a brown coat is b. You crossed two heterozygous dogs. What is the probability that the first pup will have a black coat and the second will have a brown coat? O 1/8 O 3/16 O 3/4 O 1/16 In humans, males and females have the same dosage of X chromosomes. How is this possible if males have one X chromosome but females have two? O Males and females actually have a different dosage of X chromosomes. O In females, one of the X chromosomes is inactivated into a small Barr body. O In males, one of the X chromosomes is inactivated into a small Barr body. Snail shell coiling demonstrates the genetic maternal effect. A male snail that has dextral coiling (Ss) mates with a female snail with sinistral coiling (ss). Dextral coiling is dominant to sinistral coiling. The F1 generation is produced and then crossed to produce F2. What is the phenotypic ratio of the F2 generation? O 1 dextral: 3 sinistral O 1 dextral: 1 sinistral O All dextral O 3 dextral: 1 sinistral O All sinistral

Name: 3 In dogs, coat color is an autosomal dominant trait. The allele for a
Uploaded: 2024-03-20T06:42:55.000Z
Channel: Bartleby
Description: 3 In dogs, coat color is an autosomal dominant trait. The allele for a black coat is B and the allele for abrown coat is b. You crossed two heterozygous dogs. What is the probability that the first pup willhave a black coat and the second will have a

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...

See similar textbooks

Similar questions

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?
The F1 flies described in question 1 were mated with brown-eyed flies from a true-breeding line. What phenotypes would you expect the offspring to have? (a) all with red eyes (b) all with brown eyes (c) half with red eyes and half with brown eyes (d) red-eyed females and brown-eyed males (e) brown-eyed females and red-eyed males
Normally you cant inherit both copies of a homologous chromosome from the same parent. Why? Assuming that no crossing over has occurred, how likely is it that one of your non-sex chromosomes is an exact copy of the same chromosome your maternal grandmother had? Explain your answer.
Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are dominant to green (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares would you need to complete a Punnett square analysis of this cross?
In cats, long hair is recessive to short hair. A short-haired male is mated to a long-haired female. a) What are all possible genotypes of these two cats? b) What alleles will the gametes of each of these cats contain in their chromosomes?c) What will the kittens from all possible crosses between these two cats look like?d) Two cats are mated. One of the parent cats is long-haired. The litter which results contains two short-haired and three long-haired kittens. What length fur does the second parent have, and what is its genotype?Cats also have a locus (gene) for a character called agouti. In cats with agouti fur, pigment is unevenly distributed (see Fig. 1). The agouti allele is dominant to the allele for regular fur. A male cat who long haired and is heterozygous for agouti fur is crossed with a female who has regular, non-agouti fur and is homozygous for short fur. a) What are the genotypes of these cats? b) What are all of the possible allelic combinations in the gametes from each…
In cats, black fur color is caused by an X-linked allele; the other allele at this locus causes orange color. The heterozygote is tortoiseshell. What kinds of offspring would you expect from the cross ofan orange female and a black male? A) black females; orange malesB) tortoiseshell females; black malesC) tortoiseshell females; tortoiseshell males D) tortoiseshell females; orange males E) orange females; black males
Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision have a color-blind son. What are the geno types of the parents? a) XB Xb and XB Y b) Xb XB and XB Y c) XB XB and XB Y d) Xb Xb and Xb Y e) XB XB and Xb Y
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.
In Crane flies there is a gene Y that codes for body colour. The yellow body allele is dominant to the grey body allele for that gene. A second gene W on a different chromosome codes for wing shape. For this gene, the Wrinkled allele is dominant to the straight allele. You cross a female crane fly that is heterozygous for the body colour allele and has straight wings with a male crane fly that has a Yellow body (homozygous) and is heterozygous for the Wing gene. What are the expected phenotypes and their ratios in the offspring from this cross? a. Yellow Wrinkled: Yellow Straight: Grey Wrinkled: Grey Straight of 1:1:1:1 b. Yellow Wrinkled: Yellow Straight of 1:1 c. None of the other answers have the correct ratios d. Yellow Wrinkled: Yellow Straight: Grey Wrinkled: Grey Straight of 9:3:3:1 e. Yellow Wrinkled: Yellow Straight: Grey Wrinkled: Grey Straight of 3:3:1:1
In cats, coat color is an X-linked trait with incomplete dominance. Yellow coat is caused by the allele XT and black coat by the allele Xt. A tortoise coat is caused by the heterozygous condition. What are the possible gametes that a female cat with a black coat could produce? Group of answer choices: A) X(T) B) X(t) C) X(t) or X(T) D) X(T) or Y E) X(T) or Y
In pigs, the dominant C allele produces a curly tail. c/c homozygotes have straight tails. The recessive w allele produces white hair, whereas the W allele produces brown hair. The C and W genes (loci) are on the same chromosome. A C W / c w heterozygote (curly, brown) is test crossed to a c w / c w (straight, white) homozygote multiple times. They produce a total of 100 progeny, of which 20 have curly tails and white hair. What is the distance between the C and W loci, in map units? A.10 B. 20 C. 30 D.40
A cat is born with two X chromosomes and one Y chromosome. One of the X chromosomes carries the black fur allele and the other carries the orange fur allele. Would you expect this cat to be a male or female? Would it be calico?