After a vasectomy, the semen produced will not contain
A) mucus.
B) sperm.
C) fructose.
D) acid-neutralizing fluid.
E) enzymes.
B
You might also like to view...
The electrons that are present in NADH and FADH2 are very high energy and theoretically sufficient to produce ATP alone. Why then have biological systems evolved in a way to use the various steps of cellular respiration to produce ATP?
a. It would be less efficient to produce ATP directly from NADH and FADH2. b. There are insufficient amounts of ADP to phosphorylate and make ATP. c. All living organisms must use oxygen and therefore must carry out cellular respiration. d. The steps in respiration allow for a controlled release of energy in small increments. e. Not all cells have NADH and FADH2 present in their cytoplasm.
What are the advantages and disadvantages of chronic villus sampling (CVS) in comparison to amniocentesis? Why would one conduct CVS or amniocentesis following one of the non-invasive blood tests done on the mother?
What will be an ideal response?
Each enzyme has a particular substrate because enzymes
What will be an ideal response?
Introns in pre-mRNA:a
code for specific protein domains. b. are spliced out of the message. c. move within the mRNA, giving rise to new exon combinations. d. protect pre-mRNA from enzyme degradation
e. code for important amino acid sequences