Which of the following ultimately accounts for

variation in genetic traits?
a. replication of DNA molecules
b. genetic mutation
c. asexual reproduction
d. ecological succession
e. homeostatic mechanisms


Answer: b

Biology & Microbiology

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Eukaryotes have ________ in their cytoplasmic membranes, which serve to strengthen and stabilize the membrane and make it less flexible. Many bacteria have similar molecules, known as ________, in their cytoplasmic membranes that have a similar role

A) ether bonds / ester bonds B) lipids / phospholipids C) sterols / hopanoids D) phospholipids / lipopolysaccharides

Biology & Microbiology

What is the key concept addressed by the question?

What will be an ideal response?

Biology & Microbiology

One of the two main functions of the nuclear envelope is to ____

a. provide residence for ribosomes b. allow separation of DNA from cytoplasm machinery c. provide total isolation of nuclear components d. enable faster cell division e. enable larger cell size

Biology & Microbiology

Most oncogenes encode proteins that function in cell growth signaling pathways.

Answer the following statement true (T) or false (F)

Biology & Microbiology