BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
2020th Edition
ISBN: 9780135686553
Author: Audesirk
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 2MC
If an organism has two different alleles (call the alleles a and b) of a gene,
its
phenotype will be the same as an organism with two identical alleles of this gene.all of its gametes will contain both the a allele and the b allele.
it is homozygous for that gene.
it is heterozygous for that gene.
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Chapter 11 Solutions
BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
Ch. 11 - The physical position of a gene on a chromosome is...Ch. 11 - If an organism has two different alleles (call the...Ch. 11 - Independent assortment means that a. two genes...Ch. 11 - If a gene is located on the X chromosome of a...Ch. 11 - 5. A test cross is used to determine
a. the...Ch. 11 - An organism is described as Rr, with red coloring....Ch. 11 - 2. The inheritance of multiple traits depends on...Ch. 11 - Prob. 3FTBCh. 11 - 4. Genes that are present on one sex chromosome...Ch. 11 - 5. When the phenotype of heterozygotes is...
Ch. 11 - 1. Define the following terms: gene, allele,...Ch. 11 - 2. Explain why genes located on the same...Ch. 11 - 3. Define polygenic inheritance. Why does...Ch. 11 - What is sex linkage? In mammals, which sex would...Ch. 11 - What is the difference between a phenotype and a...Ch. 11 - 6. In the pedigree of part (a) of Figure 11–22, do...Ch. 11 - Sometimes the term gene is used rather casually....Ch. 11 - In an alternate universe, all the genes in all...
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- In humans, free earlobes are a dominant characteristic over attached earlobes. A person who has homozygous free earlobes marries someone who has attached earlobes. What percentage of the offspring have the homozygous dominant genotype, FF?arrow_forwardIn a heterozygous organism, the trait which is exhibited is the _____ trait; whereas the trait which is hidden is the ___ traitarrow_forwardFor each of the following, state whether a genotype (genetic makeup of an organism) or a type of gamete is represented (gametes have one allele for each gene and genotypes have 2 alleles for each gene) Mr: AaCC: TW:arrow_forward
- One gene has alleles A and a. Another has alleles B and b. For each genotype listed, what type(s) of gametes can be produced? (Assume independent assortment occurs.) a. AABB b. AaBB c. Aabb d. AaBbarrow_forwardWhich statement best fits the principle of segregation? a. Units of heredity are transmitted to offspring. b. Two genes of a pair separate from each other during meiosis. c. Members of a population become segregated. d. A segregating pair of genes is sorted out into gametes independently of how gene pairs located on other chromosomes are sorted out.arrow_forwardThe observable traits expressed by an organism are described as its _______. a. phenotype b. genotype c. alleles d. zygotearrow_forward
- When both parents contribute the same allele for a certain trait to an offspring, this offspring is considered to be ________for that trait. Group of answer choices genotypic a carrier homozygous phenotypic heterozygousarrow_forwardOne form of red-green color blindness is an X-linked recessive trait. A heterozygote woman has children with a normal man. List the gene or genes involved and define all allele symbols.arrow_forwardIf a trait is sex linked, what chromosomes could the trait be on? A. chromosome pairs 1 - 22 B. Y C. X or Y chromosome D. Xarrow_forward
- What is the definition of homozygous ? having two identical alleles for a gene an organism's appearance or observable traits a variant for a character a heritable unit that determines a characterarrow_forwardDifferent alleles of the same gene are said to bearrow_forwardA man is homozygous dominant for fair skin and heterozygous for black-straight hair, his wife has brown skin and black-curly hair. The wife's hair color is the same genotypically with the husband. His mother in-law hair color is red since birth. The couple wanted to have kids. Enumerate the possible phenotypes of their offspring.arrow_forward
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