Which of the following is not yet known about meiosis?
a. Proteins in the nuclear envelope connect chromosomes to the cytoskeletal network.
b. Specific motor proteins move chromosomes so the homologs can find each other.
c. A proteinaceous structure called the synaptonemal complex forms between homologous
chromosomes.
d. Crossovers form between homologs in order to maintain pairing prior to the first meiotic
division.
e. A long list of specific chemicals has been shown to impair specific stages of meiosis.
E
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Which of the following is true for Brachyura marine crabs?
A) Species richness decreases with increasing sea surface temperatures. B) Species richness decreases with NPP. C) Species richness decreases with latitude. D) Species richness decreases with time.
Which organism is a monotreme?
A) echidna B) kangaroo C) whale D) zebra
Which of the following is true of ribozymes?
A. They are made up of RNA. B. They are made up of protein. C. They are made up of DNA. D. They cannot catalyze reactions.
Populations of endotherms that live in colder climates tend to have shorter ears and limbs than populations of the same species in warm climates. This is called ________ Rule.
A. Allen's B. the r-Selected C. the K-Selected D. Edward's