Compare and contrast the roles of cell division and morphogenesis in the development of an animal. What will be an ideal response?


Cell division results in an increasing number of cells, which causes the organism to increase
in size. Morphogenesis is the process by which those cells become progressively organized
into the various tissues and organs of the body. Morphogenesis occurs via pattern formation,
the sequence of events that involve cell signaling, changes in cell shape, cellular movement,
interactions with the extracellular matrix, and apoptosis.

Biology & Microbiology

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During this phase of the cell cycle the nuclear membrane starts to disassociate:

A. Metaphase B. Prometaphase C. Telophase D. Anaphase E. Prophase

Biology & Microbiology

The isotope 14C undergoes radioactive decay with a neutron splitting into an electron and a proton

This decay produces an atom of

a. iron. b. carbon. c. hydrogen. d. oxygen. e. nitrogen.

Biology & Microbiology

It is not always easy to locate or identify genes based on cDNA. How is this problem created by the differences between cDNA and DNA with respect to a given gene?

What will be an ideal response?

Biology & Microbiology

Two Martians fall in love and marry. One Martian is homozygous for red eyes and the other is

heterozygous. The recessive eye color is purple. What is the probability that the alien couple will have a child that is heterozygous for eye color? a. 1 b. 1/2 c. 1/4 d. 3/4 e. 0

Biology & Microbiology