Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 8, Problem 7RQ
A recessive trait will be observed in individuals that are ________ for that trait.
a. heterozygous
b. homozygous or heterozygous
c. homozygous
d. diploid
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Chapter 8 Solutions
Concepts of Biology
Ch. 8 - Figure 8.9 In pea plants, round peas (R) are...Ch. 8 - Figure 8.10 In pea plants, purple flowers (P) are...Ch. 8 - Figure 8.16 What ratio of offspring would result...Ch. 8 - Imagine that you are performing a cross involving...Ch. 8 - Imagine that you are performing a cross involving...Ch. 8 - The observable traits expressed by an organism are...Ch. 8 - A recessive trait will be observed in individuals...Ch. 8 - What are the types of gametes that can be produced...Ch. 8 - What is the reason for doing a test cross? a. to...Ch. 8 - If black and white true-breeding mice are mated...
Ch. 8 - The ABO blood groups in humans are expressed as...Ch. 8 - In a cross between a homozygous red-eyed female...Ch. 8 - When a population has a gene with four alleles...Ch. 8 - Describe one of the reasons that made the garden...Ch. 8 - Use a Punnett square to predict the offspring in a...Ch. 8 - Use a Punnett square to predict the offspring in a...Ch. 8 - Can a male be a carrier of red-green color...Ch. 8 - Could an individual with blood type O (genotype...
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- If you received two alleles for a gene and they were different, which of the following best describes your situation? A. Heterozygous B. Homozygous C. Homozygous dominant D. Homozygous recessive E. Heterozygous dominantarrow_forwardBaldness is a phenomenon where individuals lose hair as they grow older. As an X-linked recessive gene, what instances do females manifest this trait? a. heterozygous recessive b. heterozygous dominant c. homozygous recessive d. homozygous dominantarrow_forwardAn example of a trait that results from a single dominant allele is _____. A.attached earlobes B.cystic fibrosis C.more frequent in its appearance D.polydactylyarrow_forward
- A trait that is present in a male child but not in either of his parents is characteristic of inheritance. a. autosomal dominant b. autosomal recessive c. X-linked recessive d. It is impossible to answer this question without more informationarrow_forwardThe flower color gene studied by Mendel affected three traits. This is an example of ________. a. pleiotropic genes b. codominant inheritance c. polygenic inheritancearrow_forwardWhen a trait is only expressed in the presence of two identical alleles, the genotype is a. Heterozygous dominant b. Homozygous dominant c. Homozygous recessive d. Heterozygous recessivearrow_forward
- Choose the MOST LIKELY inheritance pattern for the trait shown in the pedigree. a. Sex-linked dominant b. Autosomal recessive c. Sex-linked recessive d. Autosomal Dominantarrow_forwardColor blindness is inherited in a(n)_____ pattern. a. autosomal dominant c. X-linked dominant b. autosomal recessive d. X-linked recessivearrow_forwardIf a person has one gene influencing blue eyes but actually has brown eyes, blue eyes must be a __________ trait. a. dominant b. recessive c. sex-linked d. polygenicarrow_forward
- A test cross is performed to determine if a specific individual is a carrier. The results generate a 50/50 ratio of phenotypes. The test subject is therefore ________. A. Unable to reproduce B. Homozygous recessive C. Not following the rules of Mendelian genetics D. Homozygous dominant E. Heterozygousarrow_forwardA recessive trait will be observed in individuals that are________ for that trait.a. heterozygousb. homozygous or heterozygousc. homozygousd. diploidarrow_forwardYou are mating a heterozygote with homozygous recessive. Choose the correct offspring: A. all homozygous dominant B. all heterosygous C. all homozygous recessive D. 50% homozygous dominant, 50% homozygous recessive E. 50% heterozygous dominant, 50% heterozygous recessivearrow_forward
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