Mindtap Biology, 1 Term (6 Months) Printed Access Card For Starr/taggart/evers/starr's Biology: The Unity And Diversity Of Life
15th Edition
ISBN: 9781337408493
Author: STARR, Cecie; Taggart, Ralph; Evers, Christine; Starr, Lisa
Publisher: Cengage Learning
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Textbook Question
Chapter 13, Problem 7SQ
A testcross is a way to determine ________.
- a.
phenotype - b. genotype
- c. dominance
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A testcross is a way to determine_______ . a. phenotype b. genotype c. dominance
A cross occurs between a black homozygous mouse and a white homozygous mouse. They produce gray offspring.
What type of dominance is reflected in the scenario above?
a. codominance
b. incomplete dominance
c. complete dominance
d. blending of genes
The symbol "F" in the results of a testcross stands for
A)recessive B)filialC)"faulty" or unexpected resultsD)first trait to show upE)dominant
Chapter 13 Solutions
Mindtap Biology, 1 Term (6 Months) Printed Access Card For Starr/taggart/evers/starr's Biology: The Unity And Diversity Of Life
Ch. 13 - Prob. 1DAACh. 13 - Prob. 2DAACh. 13 - Prob. 3DAACh. 13 - Prob. 1SQCh. 13 - An organisms observable traits constitute its...Ch. 13 - Prob. 3SQCh. 13 - Prob. 4SQCh. 13 - The offspring of the cross AA aa are ________. a....Ch. 13 - Refer to question 5. Assuming complete dominance,...Ch. 13 - A testcross is a way to determine ________. a....
Ch. 13 - Assuming complete dominance, a cross between...Ch. 13 - The probability of a crossover occurring between...Ch. 13 - True or false? All traits are inherited in a...Ch. 13 - One gene that affects three traits is an example...Ch. 13 - The phenotype of individuals heterozygous for...Ch. 13 - _______ in a trait is indicated by a bell curve....Ch. 13 - Match the terms with the best description. ______...Ch. 13 - Mendel crossed a true-breeding pea plant with...Ch. 13 - Assuming that independent assortment occurs during...Ch. 13 - Refer to problem 2. Determine the predicted...Ch. 13 - For each genotype listed, what allele combinations...Ch. 13 - Prob. 5GPCh. 13 - Suppose you identify a new gene in mice. One of...Ch. 13 - Mutations in the TYR gene may render its enzyme...Ch. 13 - In sweet pea plants, an allele for purple flowers....Ch. 13 - Red-flowering snapdragons are homozygous for...
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- A testcross is a way to determine _________. a. phenotype b. genotype c. both a and barrow_forwardif your phenotype is for a dominant trait, such as curly hair, then your genotype is? a: also for curly hairb: for both curly and straight hair c: a complex combination of all hair typesd: unknown, the alleles could be heterozygous or homozygousarrow_forwardRed-green color blindness is a recessive trait in humans. The locus is on the X chromosome. If a color blind woman marries a normal vision man, what kind of children could they have? Group of answer choices A. color blind daughters, normal vision sons B. color blind sons, normal vision daughters C. all color blind D. all normal visionarrow_forward
- In an organism of genotype Aa, half the the gametes carry the A allele and half the a allele. this is due to: A dominance B recessiveness C independent assortment D segregationarrow_forwardTwo normal-looking fruit flies were crossed, and, in the progeny, there were 202 females and 98 males.a. What is unusual about this result?b. Provide a genetic explanation for this anomaly.c. Provide a test of your hypothesis.arrow_forwardWhy is there no trait (letter) on the y chromosome for males in this pedigree? A. Because the trait is X-linked (on the X chromosome) B. Because Ms. Premo made a mistake C. Because we never write anything on the y chromosomearrow_forward
- A pair of contrasting characterscontrolling the same trait is called:A. factors B. lociC. allele D. lineagearrow_forwardA cross occurs between a chicken with white feathers and a chicken with black feathers. This results with offspring with some black feathers and some white feathers. What type of inheritance is this? a. incomplete dominance b. complete dominance c. codominance d. blended dominancearrow_forwardA woman who is heterozygous, Bb, has brown eyes; B (brown) isthe dominant allele, and b (blue) is recessive. One of her eyes,however, has a patch of blue color. Give three different explanationsfor how this might have occurred?arrow_forward
- A man with blood type A and a woman of blood type B have a baby girl of blood type O. The man sues his wife for divorce, on the grounds that it is not possible for the baby to be theirs (since the blood type is not A, B. or AB). Evaluate the lawsuit on the basis of genetics (A, B alleles are co-dominant over the recessive O allele). IA = A allele IB = B allele iO = O allelearrow_forwardThe pedigree below represents an autosomal recessive disease. What characteristic(s) of the pedigree supports this statement? Write the genotypes and their genotype probabilities in fractions and percentagesarrow_forwardAnswer choices are Dominance Recessive Codominance Incomplete dominancearrow_forward
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