Explain how a parthenogenetic organism can produce diploid offspring
What will be an ideal response?
By doubling the number of chromosomes in the eggs, either before or after meiosis
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Which of the following are the most advanced seedless vascular plants because of their large leaves and branching roots?
a. Ferns b. Horsetails c. Club mosses d. Hornworts
Which of the following does not take place during the first of the two phases of photosynthesis?
a. Light energy is absorbed by electrons in the chlorophyll. b. Water is split. c. ATP and electron carriers are formed. d. Carbon dioxide is fixed. e. Oxygen is released.
Suppose that a hemophilic male (X-linked recessive
allele) and a female carrier for the hemophilic trait have a nonhemophilic daughter with Turner syndrome. Nondisjunction could have occurred in a. both parents. b. neither parent. c. the father only. d. the mother only. e. none of these.
Ice nucleation by psychrophiles
What will be an ideal response?