If there are 32 sister chromatids in a normal somatic cell, what is the haploid number for that cell?

A. 16
B. 32
C. 8
D. 64


Answer: C

Biology & Microbiology

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________ mutations decrease or eliminate gene activity

Fill in the blank(s) with correct word

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Diagram and label the life cycle of a fern. Be sure to identify the gametophyte and sporophyte generations. What will be an ideal response?

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Which is a description of an estrogen receptor assay?

a. test for the presence of carcioembryonic antigen in the blood b. tests for a portion of human chorionic gonadotropin in serum of patients c. tests the presence of a protein antigen in serum of liver and testicular cancer patients d. tests the concentration of hormone receptor sites in cells of breast cancer patients

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This experiment employed a 1% agarose gel, and very large DNA fragments remained at the top of the gel. If a 0.1% agarose gel was used, instead of the 1% agarose gel, would the large DNA fragments migrate further down the gel?

A) Yes B) No

Biology & Microbiology