The role of maternal effect genes in Drosophila is to:
a. code for the production of yolk proteins.
b. prepare the female fly for reproduction.
c. control the early stages of Drosophila development.
d. control the development of the pupa.
e. control the shape and size of the eggs produced.
C
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Which of the following is least important for the binding of a protein to single-stranded DNA?
A. hydrophobic interactions between guanine and tyrosine B. hydrophobic interactions between adenine and phenylalanine C. attraction between phosphate groups and lysine D. attraction between phosphate groups and arginine E. hydrogen bonding between deoxyribose and tyrosine
Parathyroid hormone's main function is to
A. increase glucose mobilization during stress or fasting. B. increase calcium by mobilizing the ion from bone. C. increase sodium through reabsorption from kidney. D. increase insulin-like growth factor I and linear body growth. E. synergize with thyroid hormone in various functions.
Coral are capable of both sexual and asexual reproduction
Indicate whether the statement is true or false
The "age of amphibians" was the _____ period.
A. Carboniferous B. Silurian C. Permian D. Devonian E. Ordovician