Grana, thylakoids, and stroma are all components found in

a. vacuoles.
b. chloroplasts.
c. mitochondria.
d. lysosomes.
e. nuclei.


b. chloroplasts.

Biology & Microbiology

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If a T cell that has received signal 1 for activation fails to also receive signal 2 it may become ________.

A. apoptotic B. anuclear C. cancerous D. anergic

Biology & Microbiology

How do ribozymes work?

What will be an ideal response?

Biology & Microbiology

In women, fertilization usually takes place in which of the following reproductive structures?

a. Oviduct b. Uterus c. Vagina d. Ovary

Biology & Microbiology

As a general principle of gene regulation through operons, regulatory genes encode

A) trans-acting proteins that interact with cis-acting DNA elements. B) cis-acting proteins that interact with cis-acting DNA elements. C) cis-acting proteins that interact with trans-acting DNA elements. D) trans-acting proteins that interact with trans-acting DNA elements.

Biology & Microbiology