__________ shifts the range of variation in traits in
one direction. Fill in the blank(s) with the appropriate word(s).
Answer: Directional selection
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A scientist evaluates cellular mRNA and finds a population of transcripts that do not have a 3' poly(A) tail. However, these transcripts are translated into protein. What would these proteins most likely be?
A. ribosomal proteins B. RNA binding proteins C. DNA binding proteins D. transport proteins.
In meiosis of oogenesis, how many mature eggs result?
A. 1 B. 2 C. 3 D. 4
The name given to double-stranded DNA that is twisted upon itself is ________
Fill in the blank with correct word.
ATP is called a cell's energy "currency" because
A.) ATP catalyzes all metabolic reactions. B.) ATP allows one organelle to be exchanged for another between cells. C.) glucose is made of ATP. D.) ATP can be "made" in one place and "spent" or used in another.