The first cell seen by Robert Hooke using a microscope was a

a. skin cell.
b. cork cell.
c. blood cell.
d. root tip cell.
e. sperm cell.


Ans: b. cork cell.

Biology & Microbiology

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A mutation in the Hoxc8gene in the ancestor of modern snakes caused its descendants to have ____

a. no forelimbs or necks b. vestigial forelimbs c. necks but not forelimbs d. no ribcages or limbs e. no forelimbs or hindlimbs

Biology & Microbiology

biology, many complementary processes exist. Explain how condensation reactions are

complementary to hydrolysis reactions. What will be an ideal response?

Biology & Microbiology

During protein synthesis, ________ occurs in the nucleus as a copy of DNA is made into mRNA, and ________ begins in the cytoplasm, when mRNA associates with a ribosome.

What will be an ideal response?

Biology & Microbiology

If a virus enters the lytic phase in a host's cell, it will cause the host cell to

A. reject the virus. B. initiate an attack on the virus. C. lyse due to the action of enzymes. D. replicate itself at a higher than normal frequency. E. shrink because of the loss of cytoplasm that has been used in the synthesis of viral DNA.

Biology & Microbiology