A slime coat called peptidoglycan covers the walls of many bacteria

Indicate whether the statement is true or false.


ANSWER: False - glycocalyx

Biology & Microbiology

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Higher chromosome structure depends on:

A. SMC proteins, one of the major components of the chromosome scaffold. B. the formation of a chromosome scaffold by topoisomerases. C. the presence of the H1 protein, which promotes formation of the nucleoid. D. the formation of rosettes, which are stabilized by histone proteins. E. the formation of tetranucleosomes.

Biology & Microbiology

Which organisms have been used in genetic research for a hundred years?

a. Mice b. Fruit flies c. Corn d. Pea e. Chickens

Biology & Microbiology

A portion (location) of DNA that encodes a specific protein is a


Examine this image of chromosomes and identify the structural components.

A. kinetochore.
B. centromere.
C. chromatid.
D. chromosome.
E. gene.

Biology & Microbiology

When observing a bird skin cell in G2 under a microscope, you count 160 total chromatids. How many chromosomes does a male chicken have in its sperm cells?

A) 320 B) 160 C) 80 D) 40

Biology & Microbiology