Consider an organism whose karyotype shows it to have a total of 60 chromosomes. How many chromosomes would be contained in the sperm of this organism?
A. 23
B. 30
C. 46
D. 60
E. 90
B. 30
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The organism Sarcocystis has an obligatory two-host life cycle—an intermediate host and definitive host. The sporocysts found in a stool specimen, which measure 9 to 16 µm, are broadly oval with slightly ___________ ends
a. blunt b. tapered c. rounded d. flattened
The Nod factor is an important component of
A. the formation of the digestive enzymes of carnivorous plants. B. legume-bacterial interactions. C. mycorrhizal-terrestrial plant interactions. D. the Calvin Cycle. E. trichloroethylene metabolism.
The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is
____.
a. 0% b. 25% c. 50% d. 75%
e. 100%Each tRNA has an __________ that base-pairs with a codon, and each binds to the kind of amino acid
specified by the codon. Fill in the blank(s) with the appropriate word(s).