Fertility
Chapter 7, Problem 4
An allele is a . a. version of a gene; b. dysfunctional gene; c. protein; d. spare copy of a gene; e. phenotype
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Related Practice
Textbook Question
List several ways in which meiosis differs from mitosis.
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Textbook Question
Add labels to the figure that follows, which illustrates a portion of the human life cycle.
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Textbook Question
Which of the following statements correctly describe the relationship between genes and chromosomes? a. Genes are chromosomes; b. Chromosomes contain many genes; c. Genes are made up of hundreds or thousands of chromosomes; d. Genes are assorted independently during meiosis, but chromosomes are not; e. More than one of the above is correct.
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Textbook Question
Sperm and eggs in humans always .
a. each have two copies of every gene;
b. each have one copy of every gene;
c. each contain either all recessive alleles or all dominant alleles;
d. are genetically identical to all other sperm or eggs produced by that person;
e. each contain all of the genetic information from their producer
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Textbook Question
What is the physical basis for the independent assortment of alleles into offspring?
a. There are chromosome divisions during gamete production;
b. Homologous chromosome pairs are separated during gamete production;
c. Sperm and eggs are produced by different sexes;
d. Each gene codes for more than one protein;
e. The instruction manual for producing a human is incomplete.
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Textbook Question
If humans have 23 pairs of chromosomes, each carrying hundreds to thousands of genes, roughly how many genes are there in the human genome?
a. 23;
b. 46;
c. 1000;
d. 20,000;
e. 200,000
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