What is the function of a polar body?
a. it directs sperm to the urethra
b. it provides nourishment to the developing
oocyte
c. it serves as a nurse cell to spermatids
d. it may become a functional oocyte
e. it has no function
E
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Which of the following is not true of the eukaryotic internal ribosome entry site (IRES)?
A. It is important for efficient translation of mRNA molecules lacking a 5' cap. B. The eIF4F factor binds to this site. C. They are never found in mRNA molecules containing a 5' cap. D. It positions the mRNA start codon correctly on the 40S subunit.
A picture of the arrangement of an individual's chromosomes by size and centromere location is called a(n) ________
Fill in the blank(s) with correct word
Procollagen chains are synthesized on the endoplasmic reticulum.
a. true b. false
Steroids are lipids.
a. true b. false