Type of nuclear division that reduces the chromosome number from 2n to n; daughter cells receive the haploid number of chromosomes in varied combinations; also called reduction division.

What will be an ideal response?


Meiosis

Biology & Microbiology

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When two excitatory postsynaptic potentials (EPSPs) occur at a single synapse so rapidly in succession that the postsynaptic neuron's membrane potential has not returned to the resting potential before the second EPSP arrives,

the EPSPs add together producing _____. A) temporal summation B) spatial summation C) tetanus D) the refractory state E) an action potential with an abnormally high peak of depolarization

Biology & Microbiology

In several mammals, including some rat and shrew species, the presence of two X chromosomes means the animal will be a female, whereas having just one X chromosome dictates maleness. This type of sex determination is most similar to:

A. other mammals. B. insects. C. bees. D. birds.

Biology & Microbiology

For the amino acid glutamine, the three-letter abbreviation is ________ and the one-letter is ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Sexual reproduction occurs when _______.

a. an unfertilized egg develops normally b. two female gametes fuse and develop c. a sperm from a male fuses with an egg from a female d. two male gametes fuse and develop

Biology & Microbiology