How many copies of each gene are present in these skin cells at G1 of interphase?

A. 2
B. 4
C. 6
D. 8


A

Biology & Microbiology

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In disruptive selection, over time  

A.  a population increases its variation (e.g., a wide selection of all beak sizes). B.  the population is strongly selected for in two directions (e.g., larger beak size and smaller beak size). C.  a population goes extinct. D.  the most extreme outliers of a population are eliminated (e.g., the largest beaks and smallest beaks are eliminated). E.  the population is strongly selected for in one direction (e.g., larger beak size).

Biology & Microbiology

The cytoskeleton

A. helps maintain cell shape. B. anchors organelles. C. provides architectural support. D. functions in movements of the cytoplasm. E. All of the choices are correct.

Biology & Microbiology

Identifying an individual by his or her DNA is referred to as ____

a. structural genomics b. genomic fingerprinting c. RNAprofiling d. DNA profiling e. individual genomics

Biology & Microbiology

At the bottom or base of a pyramid of energy are the

a. primary producers. b. secondary producers. c. primary consumers. d. secondary consumers. e. tertiary consumers.

Biology & Microbiology