In what phase of the cell cycle does a typical
cell spend most of its life?
a. interphase
b. prophase
c. metaphase
d. anaphase
e. telophase
A
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True or False: Hormones and their receptors contribute to promiscuity in the vole
A. true B. false
Which of the following statements about the modified Ti plasmid used to make transgenic plants is NOT accurate?
A. It is derived from a plasmid found in the bacterium Agrobacterium tumefaciens. B. It causes crown gall formation. C. It contains a screenable marker gene. D. It contains a T-DNA region that integrates into the plant cell's genome. E. It contains unique restriction enzyme recognition sites for inserting a gene of interest.
An individual muscle cell is called a _____
1.fascicle
2.muscle fiber
3.myofibril
4.sarcomere
Respond to statements 111–115 in reference to the five stages of
sperm development listed below. a. spermatogonium b. secondary spermatocyte c. primary spermatocyte d. spermatid e. sperm D 111. This is the first stage of development where the male sex cell is haploid. M 112. This continues to undergo mitosis throughout the reproductive life of the male. D 113. This represents the product of the first meiotic division. D 114. This is a mitotic product that then undergoes meiosis. M 115. The male sex cell is fully formed at this stage of development.