Arrange the stages of sperm development in chronological order
1) sperm
2) spermatid
3) primary spermatocyte
4) secondary spermatocyte
5) spermatogonium
a. 5 ? 2 ? 3 ? 4 ? 1
b. 5 ? 3 ? 4 ? 2 ? 1
c. 2 ? 3 ? 4 ? 1 ? 5
d. 2 ? 5 ? 3 ? 4 ? 1
e. 3 ? 4 ? 5 ? 2 ? 1
B
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SINEs in molecular phylogenetics are
a. Substituted Integrated Elements. b. Short Interspersed Elements. c. Single Insertion Elements. d. Smart Innovative Entrepreneurs. e. Species Inter-related Elements.
Each of the following is a function of membranes except
A) defining cell and organelle boundaries. B) sites for specific biochemical functions. C) information storage. D) regulation of transport. E) cell–cell communication.
The condition in which it takes larger or more frequent doses to produces the same effect is drug ____
a. tolerance b. addiction c. habituation d. concealment e. depression
For Mendel's law of segregation to occur, the alleles must be
a) on different loci (= locations) on different chromosomes. b) on a nonhomologous pair of chromosomes. c) on a homologous pair of chromosome at the same loci (= locations). d) at the same loci (= locations) on the same chromosome. e) at different loci (= locations) on the same chromosome.