The centromere of human chromosome 15 creates a long arm and a barely discernable short arm. Therefore, this chromosome is

A) telocentric.

B) acrocentric.

C) submetacentric.

D) metacentric.


B) acrocentric.

Biology & Microbiology

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What is the process that eventually leads to the death of a plant?  

A.  outcrossing B.  dichogamy C.  abscission D.  perennial E.  senescence

Biology & Microbiology

Ornamental hydrangeas are well known to produce either blue or magenta flowers, depending on soil pH. This may be a good example of a discrete trait influenced by

A) genetics. B) environment. C) multiple genes. D) A and B only E) A, B, and C

Biology & Microbiology

Which of the following is considered part of a living organism's metabolism?

A) secretion of wastes B) growth and development C) responses to external stimuli D) reproduction

Biology & Microbiology

What heat free process penetrates objects well and produces mutations that damage and kill cells

What will be an ideal response?

Biology & Microbiology