The letter "B" from the above figure represents

a. complement.
b. MHC markers with antigen expressed to the
surface of a cell.
c. lysosome with MHC molecule.
d. plasma membranes fusing.
e. MHC recycling


C

Biology & Microbiology

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The tongue length of an animal is controlled by two alternative alleles at a single locus, L (long) and l (short). If an individual has parents that are both homozygous dominant, it will be

A) homozygous dominant with a long tongue. B) heterozygous with a long tongue. C) heterozygous with a short tongue. D) homozygous recessive with a long tongue.

Biology & Microbiology

Eighteen of the amino acids have two or more synonymous codons. Which two amino acids are the exceptions?

What will be an ideal response?

Biology & Microbiology

In Figure 23-2, the pair of organisms that have the most recent ancestor is:

a. 2 and 4.
b. 6 and 4.
c. 4 and 5.
d. 2 and 3.
e. 1 and 2.

Biology & Microbiology

If a new anesthetic were developed that entered the nerve cells efficiently, why would it be important for the substance to be lipophilic (to dissolve in lipids)?

What will be an ideal response?

Biology & Microbiology