A codon consists of 5 bases in a mRNA molecule

a. true
b. false


Ans: b. false

Biology & Microbiology

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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

Biology & Microbiology

Describe the relationship of protists to the major groups of eukaryotes. What will be an ideal response?

Biology & Microbiology

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.

Biology & Microbiology

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.

Biology & Microbiology