An organism with the genotype of AaXx can produce gametes containing __________ if the two genes
are unlinked.
a. either Aa or Xx
b. either AX, Ax, aX, ax
c. AaXx
d. AX or ax
e. A,a,X,x
B
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What is the first step in the process of transferring the blight-resistant gene from one organism
to another?
a. Identify the gene that you need. b. Insert the gene into a plasmid. c. Transcribe and translate the gene. d. Decode the DNA.
Carbon dioxide in the atmosphere ____
a. is destroying the ozone layer b. has dramatically increased in the last few decades c. is one of the prime reasons for acid depositions d. is a waste gas produced by respiration and has no biological use e. can change spontaneously to carbon monoxide in sunlight
Exchange of respiratory gases through the skin is a
characteristic of many a. fishes. b. amphibians. c. reptiles. d. mammals. e. birds.
An enzyme that makes covalent bonds between the sugar of one nucleotide and the phosphate groups in another nucleotide in DNA is
A) RNA polymerase. B) DNA ligase C) DNA helicase. D) transposase. E) DNA polymerase.