Which type of chromosome deletion is caused by two concurrent chromosome breaks (rather than a single break)?
A) acentric deletion
B) microdeletion
C) terminal deletion
D) partial deletion
E) interstitial deletion
E
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All the following can cause contact dermatitis EXCEPT
A) jewelry. B) latex gloves. C) poison ivy. D) superantigens.
In the sweet pea crossing experiment by Bateson and Punnet, the F2 generation had many more offspring with the phenotypes of purple flowers P, long pollen L and red flowers p, round pollen l than expected from independent assortment. This is because
A. in sweet peas, there are always more PL gametes than Pl ones. B. in sweet peas, the alleles for flower color and pollen shape are on the same chromosome. C. there were few recombination events between these genes during meiosis. D. flower color and pollen shape are within the same linkage group. E. All of the statements given are true.
In marine crocodiles excess salts are removed by:
a. salt glands in the tongue. b. salt glands above the eyes. c. concentrated urine. d. salt glands on the skin. e. salt glands in the nose.
Craniates have skulls made of either bone or cartilage
Indicate whether the statement is true or false