Quantitative genetics is
A) the quantitative study of the activity of a gene.
B) the study of the genetic diversity within a large group of individuals of the same species.
C) the study of the genetic diversity within members of a number of related species.
D) the study of traits that are determined by a number of genes simultaneously.
E) the study of the number of characteristics found in an organism.
D
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The key innovation that helped sporophyte
dominant plants survive in dry environments is a. spores. b. the cuticle. c. xylem. d. phloem. e. lignin.
Decomposers
a. are able to enter a food chain at any trophic level. b. are the most numerous organisms in an ecosystem. c. include bacteria and fungi. d. can occupy numerous habitats. e. all of these.
________ mutagens are agents that can introduce genetic change through recombination
A) Frameshift B) Physical C) Biological D) Chemical E) Organic
What is the cause of the massive amount of programmed cell death of nerve cells (neurons) that occurs in the developing vertebrate nervous system, and what purpose does it serve?
What will be an ideal response?