DNA ________ breaks the hydrogen bonds between complementary base pairs during DNA replication

Fill in the blank(s) with correct word


helicase

Biology & Microbiology

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Which of the following is not yet known about meiosis?

a. Proteins in the nuclear envelope connect chromosomes to the cytoskeletal network. b. Specific motor proteins move chromosomes so the homologs can find each other. c. A proteinaceous structure called the synaptonemal complex forms between homologous chromosomes. d. Crossovers form between homologs in order to maintain pairing prior to the first meiotic division. e. A long list of specific chemicals has been shown to impair specific stages of meiosis.

Biology & Microbiology

In the living cell, histone proteins pack DNA into a repeating array of DNA-protein particles called what?

a. beads on a string b. euchromatin c. octamers d. nucleosomes e. heterochromatin

Biology & Microbiology

In the human male, sperm cells are produced in the ________ and are supported by the ________.

A. vas deferens; endometrium B. seminiferous tubules; Sertoli cells C. interstitial tissue; cervix D. urethra; uterus E. seminal vesicles; oviduct

Biology & Microbiology

Viral DNA incorporated into host cell DNA is known as a(n)

A) capsid. B) prophage. C) envelope. D) phage.

Biology & Microbiology