DNA sequencing suggests that among the green algae, the ________ are most closely related to land plants.
A. Stoneworts
B. Volvox
C. Ulva
D. Chlamydomonas
E. Spirogyra
Answer: A
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Different proteins have different amino acid ________.
Fill in the blank(s) with the appropriate word(s).
The incorporation of a single strand of donor DNA into a recipient DNA duplex so that the donor strand replaces one of the strands or the recipient duplex generates ________ DNA.
A. unstable B. heteroduplex C. aberrant D. heterogeneous
In 1969 RH Whittaker proposed a 5 kingdom classification based mainly on?
a. Size and color of cells b. Ability to reproduce and develop c. Cell structure and how an organism derived nutrition d. Electronic microscopy and biochemisrty e. RNA sequence analysis
The normal cell cycle for body cells follows a prescribed timeline based on genetic information contained within the cells. Suppose the cell cycle continues on with mitosis occurring even when it should not. What might happen?
A) A gamete may be produced. B) A tumor might grow. C) An extra limb may form. D) Viruses might replicate.