A codon consists of 5 bases in a mRNA molecule
a. true
b. false
Ans: b. false
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The acrosome of a sperm cell contains ____
a. a haploid number of chromosomes b. a diploid number of chromosomes c. enzymes and other proteins
d. mitochondria e. ATP
Describe the relationship of protists to the major groups of eukaryotes. What will be an ideal response?
Sympatric speciation occurs
a. before allopatric speciation. b. together with allopatric speciation. c. after allopatric speciation. d. within the home range. e. outside the home range.
John has alkaptonuria; it "runs in the family". John and his grandmother are both homozygous for alkaptonuria. John's grandmother has two brothers and a sister. One of the brothers had alkaptonuria and his daughter is John's mother. Based on this information, John's parents are:
a. Both homozygous for the alkaptonuria gene. b. Both heterozygous for the alkaptonuria gene. c. Not carrying the alkaptonuria gene. d. There isn’t enough information.