Some eukaryotes perform fermentation.
True or false
Answer: True.
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Name any checkpoint gene
What will be an ideal response?
Which one of the following statements describes the process through which a primary RNA transcript becomes a functional mRNA?
A) Sections of the primary transcript called exons are removed, and the sections that remain are spliced together. B) Sections of RNA called exons are added to the primary transcript. C) A primary transcript needs no editing and is immediately ready to function as mRNA. D) Noncoding sections of the primary transcript, called introns, are removed, and the remaining coding sections, called exons, are spliced together. E) Random sections of the primary transcript called exons are replaced with sections called introns.
Which of the following did Gregor Mendel never see?
a) a chromosome b) a stamen c) an F2 generation d) a pea e) a hybrid
Humans have twenty-three pairs of chromosomes and chimps have twenty-four pairs of chromosomes. What is the most likely explanation for these differences in human and chimp genomes?
A) The common ancestor of humans and chimps had twenty-four pairs of chromosomes. After the two groups evolved, two human chromosomes fused end to end B) In the evolution of chimps, new adaptations resulted from additional chromosomal material. C) At some point in evolution, human and chimp ancestors reproduced with each other. D) Errors in mitosis resulted in an additional pair of chromosomes in chimps.