The possibility that Mongolian ruler Genghis Khan spread an unusual chromosome to nearly 16 million men living today resulted from studies of ________
A) proteomics
B) plasmids
C) the X chromosome
D) the Y chromosome
D
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The molecules formed by an enzyme-catalyzed reaction are called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following plants fits the
description of having flagellated sperm, xylem and phloem, and a short-lived gametophyte?
a. peat moss b. pine tree c. rose d. horsetail e. more than one of these
An X-linked recessive gene (c) produces red/green color blindness. A normal woman whose father
was color blind marries a color-blind man. (a) What are the possible genotypes for the mother of the color-blind man? (b) What are the possible genotypes for the father of the color-blind man? (c) What are the chances that the first son will be color-blind? (d) What are the chances that the first daughter will be color-blind? What will be an ideal response?
Which of the following mutations would increase evolutionary fitness?
A) One that increases the frequency of successful reproduction B) One that increases the life span of the organism C) One that removes other alleles from the population D) One that attracts more potential mates without increasing the frequency of reproduction E) One that increases the birth weight of offspring while decreasing the number of offspring