In cattle, F₁ offspring from a cross of a white-coated bull and a red-coated cow would exhibit roan coat colour. This is an example of a. genes with multiple alleles. b. Codominance. c. Incomplete dominance d. Complete dominance Gametes contain a diploid (full) number of chromosomes a. True b. false

In cattle, F₁ offspring from a cross of a white-coated bull and a red-coated cow would exhibit roan coat colour. This is an example of a. genes with multiple alleles. b. Codominance. c. Incomplete dominance d. Complete dominance Gametes contain a diploid (full) number of chromosomes a. True b. false

Name: In cattle, F₁ offspring from a cross of a white-coated bull and ared-
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Description: In cattle, F₁ offspring from a cross of a white-coated bull and ared-coated cow would exhibit roan coat colour. This is an example ofa. genes with multiple alleles.b. Codominance.c. Incomplete dominanced. Complete dominanceGametes contain a diploid

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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What gametes are produced by the following organisms: a. Genotype YyRr, if Y and R are on different chromosomes b. Genotype YyRr, if dominant Y and R are on the same chromosome, no crossing over c. Genotype YyRr, if dominant Y and recessive r are on the same chromosome, no crossing over d. Genotype YyRr, if dominant Y and R are on the same chromosome, 50% crossing over e. What is the genotype of the F1 generation if parents RRyy and rrYY are crossed, R and y are located on the same chromosome, no crossing over.
Crossing over means the same as: a. incomplete dominance b. the process by which pieces of homologous chromosomes are exchanged c. heterozygosity d. the peculiar lineup of homologous chromosomes e. independent assortment
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
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?
In certain species of flies, eye color is controlled by sim-·ple dominance by a single pair of alleles. A red-eyed fly was crossed with a white-eyed fly, both of whose parents had white eyes. All of their offspring (both female and male) had red eyes.a. Which is dominant, the allele for red eyesor the allele for white eyes?b. What is the genotype of the white-eyed parents?c. If the white-eyed parent was mated with one of the red-eyed offspring, what phenotypic ratio wouldyou expect regarding eye color?
a. State a hypothesis explaining the inheritance of flower color in painted tongues. b. Assign genotypes to the parents, F₁ progeny, and F2 progeny for all five crosses. c. In a cross between true-breeding yellow and true-breeding lavender plants, all of the F1 progeny are bronze. If you used F₁ plants to produce and F2 generation, what phenotypes in what ratios would you expect? Are there any genotypes that might produce a phenotype that you cannot predict from earlier experiments, and if so, how might this alter the phenotypic ratios among the F2 progeny?
Two different strains of sweet peas are true-breeding andhave white flowers. When plants of these two strains arecrossed, the F1 offspring all have purple flowers. This phenomenon is calleda. epistasis. c. incomplete dominance.b. complementation. d. incomplete penetrance
In peas, yellow seed (Y) is dominant over green seed (y). Inthe F2 generation of a monohybrid cross that begins when adominant homozygote is crossed with a recessive homozygote,you would expecta. three plants with yellow seeds to every plant with greenseeds.b. plants with one yellow seed for every green seed.c. only plants with the genotype Yy.d. only plants that produce yellow seeds.e. Both c and d are correct.
With regard to linked genes on the same chromosome, whichof the following statements is false?a. Crossing over is needed to produce nonrecombinant offspring.b. Crossing over is needed to produce recombinant offspring.c. Crossing over is more likely to separate alleles if they arefar apart on the same chromosome.d. Crossing over that separates linked alleles occurs duringprophase of meiosis I.
A tall pea plant with terminal flowers (flowers on the ends of the stems) is crossed with a short plant thathas axial flowers. All 72 offspring are tall with axial flowers. This is a dihybrid cross with the height andflower position traits showing independent assortment. a. Name the dominant and recessive alleles. b. Give the genotypes of the parents and offspring in this cross. c. Predict the F2 offspring when the tall-axial F1's are allowed to self pollinate.
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