Through meiosis
A) alternate forms of genes are shuffled.
B) offspring are provided with new gene combinations.
C) parental DNA is divided and distributed to forming gametes.
D) the diploid chromosome number is reduced to haploid.
E) All of the choices are correct.
D
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Which of the following genetic processes may be most helpful in accounting for the Cambrian explosion?
A) binary fission B) mitosis C) random segregation D) gene duplication E) chromosomal condensation
The physical features and chemical composition of the rocks that contain fossils provide information about the ____ in which the fossil organisms lived
Fill in the blank with the appropriate word.
The immediate ancestors of plants were:
A. charophyceans B. red algae C. kelp D. cyanobacteria E. dinoflagellates with plastids
How many different types of HPV are known to doctors?
a. 24 b. 6 c. 12 d. 30 e. 100