During the formation of gametes for sexual reproduction, DNA is exchanged among the chromosomes, which varies the genetic information passed to the offspring. What is this process called?
A) DNA replication
B) translation
C) transcription
D) crossing over
Ans: D) crossing over
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Albinism is a recessive disorder in which the skin and hair fail to produce pigment. The following question(s) ask you to evaluate the pedigree chart shown here in which "N" is the allele for normal pigmentation and "n" is the allele for albinism. The shaded circles for Deirdre and Shannon represent the only individuals expressing the disorder.
What was the probability that Deirdre and Geoff's first child would express the albino trait?
A. 1/2 B. 3/4 C. 1/8 D. 1/4
The most common causative agent of urinary tract infections is ________.
A. Staphylococcus aureus B. Streptococcus pyogenes C. Pseudomonas aeurginosa D. Escherichia coli
The synthesis of thyroid hormone under normal circumstances is stimulated by;
a) High TSH b) High TRH c) Low T3 d) Low T4 e) All of the above
Hydrostatic pressure in plant cells that presses the plasma membrane firmly against the interior of the cell wall, making it rigid is.
What will be an ideal response?