1. Suppose a white, straight haired guinea pig mates with a brown, curly-haired animal. All five babies in their first litter have brown fur, but three are curly and two have straight hair. The second litter consists of six more brown offspring, where two are curly and four are straight haired. What is the probability of getting two female guinea pigs with straight hair in a row?

1. Suppose a white, straight haired guinea pig mates with a brown, curly-haired animal. All five babies in their first litter have brown fur, but three are curly and two have straight hair. The second litter consists of six more brown offspring, where two are curly and four are straight haired. What is the probability of getting two female guinea pigs with straight hair in a row?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter20: Development Of Evolutionary Thinking

Section: Chapter Questions

Problem 12TYK

See similar textbooks

Similar questions

1 Some birds with shorter beaks enter into a population of birds with much longer beaks, resulting in several offspring with in-between sized beaks in the next generation.
1. In a particular bird species, the tips of the feathers are tinged with blue, white, or silver. The BB genotype calls for blue-tipped feathers. The WW genotype calls for white-tipped feathers. The BW genotype calls for an intermediate with silver-tipped feathers. A mating occurs between a blue-tipped bird and a white-tipped bird. What types of offspring would be expected? Give the genotypes and phenotypes of the possible offspring and the probability of each. 2. The bird species described in question 5 has an ornamental plumage on its head. The plumage feathers are either flexible or stiff. The allele for flexible plumage is dominant over the allele for stiff plumage. A male who is heterozygous for plumage and has silver-tipped wings mates with a female who has stiff plumage with silver-tipped wings. What types of offspring would be expected from this cross? Give the probability of each. 3. In some cats, the gene for tail length shows incomplete dominance. When a cat with a…
1. In cats, black coat color is dominant over gray. A female black cat whose mother is gray mates with a gray male. If this female has a litter of six kittens, what is the probability that three will be black and three will be gray?
6. Consider that people with blue eyes must have two alleles for blue eyes since blue eye color is a recessive trait. A blue-eyed person and a brown-eyed person have an offspring with blue eyes. The brown-eyed person must A. have two alleles for blue eyes. B. have two alleles for brown eyes. C. not have the dominant brown eye allele. D, have one allele for blue eyes and one allele for brown eyes.
2. Some female dolphins will only become pregnant if the male approaches them from the left side when attempting to mate . tell me what type of variation it is and what evidence supports it
1: The A and B antigens in humans may be found in water-soluble form in secretions, including saliva, of some individuals (Se/Se and Se/se) but not in others (se/se). The population thus contains “secretors” and “nonsecretors.” (a) Determine the proportion of various phenotypes (blood type and ability to secrete) in matings between individuals that are blood type AB and type O, both of whom are Se/se. (b) How will the results of such matings change if both parents are heterozygous for the gene controlling the synthesis of the H substance (Hh)?
19. If you cross a homozygous dominant individual with a heterozygous individual, what percentage of the offspring would display the dominant phenotype? 1. 0% 2. 25% 3. 50% 4. 75% 5. 100%
2.In dogs, there is a hereditary deafness caused by a recessive allele, d. A kennel owner has a male dog that she wants to use for breeding purposes if possible. The dog can hear, but the owner is unsure of the genotype. She does a testcross (crosses it to a homozygous recessive dog), and two of the five offspring are deaf. This means that the male dog A.has the genotype DD B.has the genotype Dd C.is still of unknown genotype since there were offspring of both deaf and hearing phenotypes. D.has the genotype dd
1. For a particular rodent, black fur (B) is dominant over brown fur (b), and a long tail (L) is dominant over a short tail (l). Create a Punnett square that shows the genotypes of all the possible offspring that could result from the breeding of 2 rodents that are both heterozygous for both traits. Include the percentage/ratio of occurrence for each phenotype.
4. The ruffed chicken has an under-chin wattle. A smooth wattle (S) is dominant over a wrinkled wattle (s). A red wattle (HR) is incompletely dominant with a white wattle (HW) so that an individual with HRHW will have a pink wattle. A chicken with a wrinkled red wattle is mated to a homozygous chicken with a smooth white wattle. What is the genotype and phenotype of the chicks?
1.) A long neck yellow giraffe (T t Y y) mates with a tall neck orange giraffe (T t y y). What is the percent chance their offspring would be have a short neck and orange? 2.) In humans, cataracts in the eyes and fragility of the bones are caused by dominant alleles that assort independently. A man with cataracts and normal bones marries a woman without cataracts but with fragile bones. The man’s father had normal eyes, and the woman’s father had normal bones a.) What are the genotypes of the man and the woman? b.) What is the probability that their first child will? (1) be free of both abnormalities (2) have cataracts but not have fragile bones (3) have fragile bones but not have cataracts (4) have both cataracts and fragile bones 3.) In corn plants, two pairs of genes control color in the ears of corn. The following genotypes result in various…
4. In humans, pointed eyebrows are dominant over smooth eyebrows. Angela’s father has pointed eyebrows, but she and her mother both have smooth eyebrows. What is her father’s genotype? 5. Two short haired guinea pigs are mated several times. Out of 50 offspring, 12 of them have long hair. What are the probable genotypes of the parents?