Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 9, Problem 10SQ
A purebred brown mouse is repeatedly mated with a purebred white mouse, and all their offspring are brown. If two of these brown offspring are mated, what fraction of the F2 mice will be brown?
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Chapter 9 Solutions
Campbell Essential Biology (7th Edition)
Ch. 9 - The genetic makeup of an organism is called its...Ch. 9 - Which of Mendels laws is represented by each...Ch. 9 - Edward was found to be heterozygous (Ss) for the...Ch. 9 - Whether an allele is dominant or recessive depends...Ch. 9 - Prob. 5SQCh. 9 - Prob. 6SQCh. 9 - Prob. 7SQCh. 9 - Prob. 8SQCh. 9 - Adult height in people is at least partially...Ch. 9 - A purebred brown mouse is repeatedly mated with a...
Ch. 9 - How could you determine the genotype of one of the...Ch. 9 - Tim and Jan have freckles (a dominant trait), but...Ch. 9 - Incomplete dominance is seen in the inheritance of...Ch. 9 - Why was Henry VIII wrong to blame his wives for...Ch. 9 - Both parents of a boy arc phenotypically normal,...Ch. 9 - Heather was surprised to discover that she...Ch. 9 - Prob. 17SQCh. 9 - Prob. 18IMTCh. 9 - Prob. 19IMTCh. 9 - For each pair of your homologous chromosomes, one...Ch. 9 - In 1981, a stray cat with unusual curled-back ears...Ch. 9 - Interpreting Data As shown in the Punnett square...Ch. 9 - There are now nearly 200 recognized breeds of dog,...Ch. 9 - Gregor Mendel never saw a gene, yet he concluded...Ch. 9 - Prob. 25BS
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- In fruit flies, the allele for normal wings (V) is dominant to the allele for short wings (v). Suppose two fruit flies heterozygous for the trait are mated. What is the male fruit fly’s genotype and the female fruit fly’s genotype? What is the male fruit fly’s phenotype and the female fruit fly’s phenotype? What will be the genotypic ratio of the F1 generation? What will be the phenotypic ration of the F1 generation?arrow_forwardIn a cross between a black and a white guinea pig, all members of the F1 generation are black. The F2 generation is made up of approximately 3/4 black and 1/4 white guinea pigs. (a) Diagram this cross, showing the genotypes and phenotypes. (b) What will the offspring be like if two F2 white guinea pigs are mated? (c) Two different matings were made between black members of the F2 generation, with the following results. Cross Offspring Cross 1 All black Cross 2 3/4 black, 1/4 white Diagram each of the crosses.arrow_forwardA green salamander is mated with a white salamander. In the offspring, 49% of their abies are green and 51% of the babies are white. What is the genotype of the green salamander?arrow_forward
- The genetic identity of the female parent is RrGg and the genetic identity of the male parent is Rrgg. They produce 320 offspring together from a single mating: 57 red-eyed females with grey bodies, 61 red-eyed females with yellow bodies, 22 brown-eyed females with grey bodies, 20 brown-eyed females with yellow bodies.59 red-eyed males with grey bodies, 63 red-eyed males with yellow bodies, 20 brown-eyedmales with grey bodies, 18 brown-eyed males with yellow bodies. Show the simultaneous transmission of the two genes involved to give rise to the progeny given with the use of genetic diagrams and summaries as required. (Hint: you are only requiredto show the simultaneous transmission from the P to F1 generations)arrow_forwardIf a pure breeding(homozygous) black(dominant), longhaired (recessive) cat is made of pure breeding Siamese, shorthaired cat, and one of their male offspring has made it to one of their female offspring, what is the chance of producing a Siamese colored shorthair kitten?arrow_forwardA red-eyed (dominant) female with a grey (dominant) body is crossed with red-eyed (dominant) male with a yellow body (recessive) The pair of fruit flies (given above) produce 320 offspring together from a single mating: 57 red-eyed females with grey bodies, 61 red-eyed females with yellow bodies, 22 brown- eyed females with grey bodies, 20 brown-eyed females with yellow bodies. 59 red-eyed males with grey bodies, 63 red-eyed males with yellow bodies, 20 brown-eyed males with grey bodies, 18 brown-eyed males with yellow bodies. From this information only (NO genetic diagrams required), what evidence and logic can you use to deduce the genetic identity of the parent flies?arrow_forward
- In mice, black fur (W) is dominant over white fur (w), and black eyes are dominant (R) over red eyes (r). The two genes are located on different chromosomes.A male mouse with black fur and black eyes mated with a female mouse with white fur and red eyes. Out of 64 offspring, 30 had black fur and black eyes, and 34 had white fur and black eyes. What is the genotype of the male parental mouse? Select one: a. WwRr b. WwRR c. WWRR d. WWRrarrow_forwardin certain fish the mating of black-scaled (B) with white a white-scaled (W) will create offspring with a patchwork with black and white scales. which type of inheritence pattern is this?arrow_forwardA guinea pig that is heterozygous for fur color and texture mates with another guinea pig heterozygous for both traits. They produce 96 offspring. How do I draw a Punnett Square for this information?arrow_forward
- Assume that a single gene determines coat coloration in cats, with the B allele resulting in orange coloration, and b allele results in black coloration. This gene exists on the X chromosome (recall that cats have XX/XY system of sex determination). My cat Pepper is a female tortoiseshell, and my cat Hobbes is an orange male. (i) What is the probability that Hobbes and Pepper have three kittens, Hopper (male), Pepsi (female), and Hippie (female)? What is the probability that they have three kittens, and that Hopper (male), and Hippie (female) are both orange, and that Pepsi (female) is a tortoiseshell? (ii) Distribution of % of Barr Bodies in each body part 120 100 100 80 100 60 40 50 50 20 Head Body Tail Black Orangearrow_forwardIn some cats, the gene for tail length shows incomplete dominance. When a cat with a long tail is bred to a cat with no tail, the resulting offspring have short tails. For each of the following, predict the types of offspring that would result: a) A long tail cat bred to a cat with no tail b) A long tail cat bred to a short tail cat c) Two short tail catsarrow_forwardTwo brown bears have cubs in late spring. The mother bear has the phenotype for long front claws. The mother bear has the genotype (Aa), while the father has the same genotype as the mother. A) What percentage of the offspring will have long claws?arrow_forward
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