A gene locus is
a. a recessive gene.
b. an unmatched allele.
c. a sex chromosome.
d. the location of an allele on a chromosome.
e. a dominant gene.
Answer: d
You might also like to view...
Cloning vectors can be distinguished from expression vectors by
A) carrying ori genes for replication of the cloned sequence. B) having a multiple cloning site (MCS). C) having a high copy number per cell. D) lacking a promoter site upstream of the insertion site.
Summarize the arguments, both for and against, for the hypothesis that Abraham Lincoln had Marfan syndrome
What will be an ideal response?
While ice skating, you fall down and bruise your coccyx. The next day, after hearing about your mishap, your friends bring you a variety of gag gifts. Which of these would actually be useful?
a. helmet b. elbow pads c. donut pillow d. eyepatch
Yeast cells take up glucose (a sugar) to use as their primary source of energy. Typically, glucose concentrations outside yeast cells are far lower than glucose concentrations inside the cells. Therefore, for yeast to take up glucose, the cells must use:
A) facilitated diffusion to move glucose down its concentration gradient. B) osmosis to directly absorb glucose. C) facilitated diffusion to move glucose up its concentration gradient. D) active transport to move glucose up its concentration gradient. E) active transport to move glucose down its concentration gradient.