Ribosomes are made up of which kind of nucleic acid?
A) mRNA
B) tRNA
C) rRNA
D) DNA
Answer: C) rRNA
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Which of the following is a characteristic of dead zones?
a. depletion of normal flora and fauna b. corrosion caused by acid rain c. excessive amounts of hydrogen sulfide d. unnatural uplifting of ocean sediments
Mitochondria contain their own genes. Study of these genes has revealed that mitochondria can be inherited from both the mother and the father when sperm and egg cells unite.
a. true b. false
Nucleosomes are bead-like structures ____
a. that form during interphase to assist with DNA uncoiling b. that are a major class of proteins in chromatin c. composed of histone wrapped with DNA d. composed of linked homologous chromosomes e. composed of pyrimidines and purines
What is the mammalian transcription factor that elicits a cascade of gene transcription and developmental events that ultimately produce male internal and external structures?
What will be an ideal response?