Geneticists discovered checkpoint genes involved in the cell cycle by studying the process in ____

a. yeast
b. chytrids
c. zygote fungi
d. mycorrhizal fungi
e. bacteria


a

Biology & Microbiology

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Which factors contribute most to intraspecific competition?

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The double layered sac that surrounds the heart

and protects and anchors it is called the

a. peritoneum. b. perineum. c. pericardium. d. peristalsis. e. periwinkle

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A __________ is a hybrid, with two nonidentical

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

Biology & Microbiology

The final step in karyotyping is when _____.

A) colchicine is added to the suspension of cells and growth medium B) the cells are osmotically shocked C) the photographed chromosomes are cut up and reorganized by size D) a pedigree is constructed from the assembled family history

Biology & Microbiology