In humans, a deletion from chromosome 5 typically leads to severe mental retardation and a malformed larynx; this
disorder is known as ____.
a. Turner syndrome
b. Down syndrome
c. cri-du-chat
d. Triple-X syndrome
e. Klinefelter syndrome
ANSWER: c
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The highly toxic cyanide poison binds to the last
molecule in the electron transfer chain, halting additional electron transfer. What is the consequence? a. Oxygen can’t pick up electrons. b. No more water will be formed. c. No more ATP will be formed. d. The affected individual will not survive. e. All of these are a consequence.
Peptide hormones include
a. estrogens. b. growth hormone. c. melatonin. d. thyroid hormone. e. oxytocin.
If each nucleotide coded for a single amino acid, how many different types of amino acids could be
combined to form proteins? a. 4 b. 16 c. 20 d. 64 e. 0
For a given cross, the expected number of double recombinants is 20 and the observed number of double recombinants is 15. What is the interference calculation (I)?
A) 0.25 B) 1.33 C) 20 D) 0.75 E) 15