Which meiotic division(s) reduce(s) chromosome number (i.e., meiosis I, meiosis II, or both)? Explain your answer

What will be an ideal response?


Meiosis I reduces chromosome number when homologs separate. After meioisis I, each cell contains a haploid number of chromosomes. Meiosis II reduces DNA content, but does not reduce chromosome number.

Biology & Microbiology

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The hormone responsible for cell differentiation, particularly xylem and phloem, in the roots is:

A. gibberellic acid. B. auxin. C. ethylene. D. abscisic acid. E. cytokinin.

Biology & Microbiology

Colonial morphology that appears as a "checker" or dipped in the middle with raised edges is termed:

a. flat. b. convex. c. umbilicate. d. variable.

Biology & Microbiology

Why is the Arctic fox declining in numbers?

A) Red fox are outcompeting them as they expand north. B) Resource availability is lacking. C) They are up against their thermal maximum with increased global temperatures. D) Melting ice reduces suitable habitat.

Biology & Microbiology

Provides physical protection against abrasion, pathogens and chemical attack

A. Pseudostratified columnar B. Simple columnar C. Simple cuboidal D. Simple squamous E. Stratified squamous F. Transitional

Biology & Microbiology