more biology help?

[Kelly A]

7) The pathways of metabolism also assist in maintaining a constant body temperature.
a. True___
b. False___
8) Deficiencies of certain nutrients result in ill health.
a. True___
b. False___
9) Many behaviors have a strong genetic component.
a. True___
b. False___
10) Mutations can be beneficial.
a. True___
b. False___
1. The nucleotide sequence of a mRNA codon is composed of how many bases?
A. one
B. two
C. three
D. sixteen
E. sixty-four
4. The 3’ Poly-A tail is attached to
a.the Poly-A polymerase enzyme
b.the mRNA
c.the tRNA
d. the coding strand of the DNA molecule
e.the template strand of the DNA molecule
5. Noncoding DNA that interrupts the nucleotide sequence of a gene are called
a. exons
b introns
c axons
d anRNPs (snurps)
e spliceosome