Glittering wood-moss (Hylocomium splendens) is a species of moss that can be found in Alaska and Canada. Based on what you know about mosses, what is likely true of the female gametes of glittering wood-moss?
A. They are produced when the gametophyte undergoes meiosis.
B. They are smaller than the male gametes.
C. They are haploid.
D. They are housed in archegonia.
E. They lack flagella.
Answer: E
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churn out copious amounts of gene products because a. they are acetylated. b. they are methylated. c. they contain numerous side-by-side copies of genes. d. they have multiple promoter sites. e. their histones are only loosely associated with the DNA molecules.
The activation of enzymes by the removal of a
portion of polypeptide chain is an example of a. transcriptional control. b. transcript processing control. c. transport control. d. translational control. e. post-translational control.
Hydropathy analysis of a membrane protein's amino acid sequence predicts the protein's transmembrane segments and orientation in the membrane
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When two secondary oocytes are released from the ovaries and are fertilized by different sperm cells, what is the result?
A) clones B) identical twins C) conjoined twins D) fraternal twins