What are the functions of helper T cells?
What will be an ideal response?
They stimulate production and differentiation of both cytotoxic T and B cells, and the formation of memory T cells.
You might also like to view...
Which developmental stage occurs first?
a. cleavage b. fetus c. gastrula d. zygote e. blastula
In the ABC model of flower development in
Arabidopsis thaliana, sepals form when gene(s) __________ is(are) switched on. a. A b. A and B c. B and C d. C e. A and B and C
Some eukaryotic DNA sequences act as introns in the cells of some tissues and exons in the cells of other tissues. This
is an example of ____, and allows for ____. a. positive control; feedback inhibition b. gene amplification; the regulation of the rate of transcription c. alternative splicing; the formation of different types of closely related proteins d. DNA methylation; the formation of different types of closely related proteins e. DNA replication; heterodimer formation
Plants often do not survive indoors because they lack adequate amounts of (Check all that apply)
A. light. B. carbon dioxide. C. water. D. minerals.