The ends of eukaryotic chromosomes can be lengthened by:
a. apoptosis.
b. reverse transcriptase.
c. primase.
d. telomerase.
e. DNA polymerase
D
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Starvation in the uterus increases the risk in adulthood of developing
A) heart and blood vessel disease, type 2 diabetes, and obesity. B) alcoholism. C) eating disorders and social anxiety disorder. D) post traumatic stress disorder and hearing loss.
One of the two strains of Streptococcus pneumoniae isolated in the 1920s was surrounded by a
____________________, giving it the ability to evade the immune system and cause pneumonia. Fill in the blank(s) with the appropriate word(s).
Mendel finds a new species of pea plant that produces two different flower colors, white and black. He crosses together two parents one homozygous dominant and heterozygous parent for flower color (W = white, w = black.) What is the probability that a plant in the F1 generation has white flowers?
a. 1/4 b. 1/2 c. 3/4 d. 1
Crop plants modified to be resistant to insect damage produce Bt toxin from a (bacterial/fungal/synthetic) gene
What will be an ideal response?