BIOLOGY
BIOLOGY
12th Edition
ISBN: 9781264839698
Author: Raven
Publisher: MCG CUSTOM
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Chapter 24, Problem 1U

Humans and pufferfish diverged from a common ancestor about 450 MYA, and these two genomes have

a. very few of the same genes in common.

b. all the same genes.

c. a large proportion of the genes in common.

d. no nucleotide divergence.

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Segmental duplications play an important role in evolution by a. giving rise to new genes and multigene families. b. keeping the number of genes in a genome constant. c. eliminating repetitive sequences produced by transposition. d. controlling the base content of the genome.
When the genomes of vertebrates are compared,a. genomes of closer relatives are more alike.b. genomes of closer relatives are less alike.c. genomic variation is essentially the same among relatives.d. genomes of more distant relatives are more alike.
Homologous genesa. are derived from the same ancestral gene.b. are likely to carry out the same or similar functions.c. have similar DNA sequences.d. exhibit all of the above features.
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Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License