DNA replication takes place during which phase of the cell cycle?

1.interphase
2.G1
3.S phase
4.G2


3

Biology & Microbiology

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The simplest type of variation in a genome sequence is a single nucleotide change called a(n)

What will be an ideal response?

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The validity of scientific discoveries should be based on ____

a. opinions b. evidence c. philosophy d. hearsay e. hunches

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When a eukaryotic gene is cloned into a bacterium, the advantage of a complementary DNA (cDNA) gene being used instead of fragments of genomic DNA is that ________.

A. the introns have been removed from the cDNA gene but not from the genomic fragment B. There is no advantage to using a cDNA gene rather than a genomic fragment C. the cDNA is made with the nucleotides found in the prokaryote but not in the eukaryote D. the promoter and terminator are found in the cDNA gene but not in the genomic fragment

Biology & Microbiology

A cell with 10 chromosomes undergoes mitosis and cell division. How many daughter cells are produced, and what number of chromosomes do they have?

A) 2 daughter cells, 10 chromosomes each B) 4 daughter cells, 20 chromosomes each C) 1 daughter cell, 10 chromosomes each D) 2 daughter cells, 5 chromosomes each

Biology & Microbiology