How many DNA molecules are in a somatic cell of the snail in G2 phase?
A) 4
B) 8
C) 16
D) too many to count
C
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In your garden you decide to plant potatoes. You watch the above-ground development of your plant and decide to categorize the growth into four main stages:
1. The initial development of the stem and leaves (shoot) 2. The development of flowers and general growth of the shoot 3. A vegetative period where not much growth seems to be happening 4. The harvest of your potato crop (digging up the tubers formed near the base of the stem) In stage 2, which is a bigger "sink" for phloem flow? A. development of flowers B. growth of the shoot C. There is insufficient information to answer the question.
Karyotype analyses are performed on cells in ____ of mitosis
a. prophase b. prometaphase c. metaphase d. anaphase e. telophase
Plasmodesmata are
a. only found in root cells. b. connections between xylem and phloem. c. incapable of structural change. d. able to be opened and closed. e. only found in leaf cells.
Four of the five answers listed below are functional groups. Select the exception
a. R group b. amino group c. carboxyl group d. hydroxyl group e. methyl group