The physical location of a particular gene on a chromosome is called:a
an allele.
b. its locus.
c. a trait.
d. a chromatid.
e. its genotype.
b
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Gene therapy can best be described as the ____
a. repair of a defect (mutation) in a gene b. insertion of normal genes to act in place of mutant genes c. insertion of human genes into other organisms d. cloning of genes to produce and purify therapeutically useful proteins e. mapping of all human genetic information
What makes the "head" of a phospholipid hydrophilic?
A) The even distribution of electrons across the fatty acids makes the head polar. B) The uneven distribution of electrons across the fatty acids makes the head polar. C) The phosphate group carries a negative charge, making the head polar. D) The phosphate group carries a negative charge, making the head nonpolar
Shown below is a hypothetical DNA sequence from a virus. Also shown is the sequence of the mRNA that is synthesized from this DNA.DNA sequence:5'-AGCACCTGCCGAATGGGCCAAATCCTGCCGAATAAA-3'3'-TCGTGGACGGCTTACCCGGTTTAGGACGGCTTATTT -5'mRNA sequence (G* = G cap):5'-G*AGCACCUGCCGCCUGCCGAAUAAAAAAA....-3' The RNA was most likely transcribed by
A. RNA polymerase II. B. RNA polymerase III. C. RNA polymerase holoenzyme. D. RNA polymerase I.
A horseshoe crab walking on the bottom of shallow coastal waters, feeding on algae, invertebrates, and other small life forms, describes the horseshoe crab's ________
Fill in the blank(s) with correct word