Which statement concerning fertilization in ferns is true?
A. The sporophyte grows from a spore.
B. The process requires water.
C. The fertilization product is haploid.
D. A spore is the product of fertilization.
E. The process occurs outside the egg-producing structure.
Answer: B
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This is an example of which type of selection?
You are all excited because you just purchased a male guppy that has red, blue and green colors on its fins and tail. Your guppies at home do not have this combination of colors. You place the new male in with three females for mating purposes. After three weeks you have many new baby guppies and most of them have the new color combination. A. Natural. B. Environmental. C. Analogous. D. Convergent. E. Artificial.
Outline the series of steps that transfers genetic information from the linear sequence of nucleotides in a DNA molecule into the linear sequence of amino acids in a protein
What will be an ideal response?
Bacteria that have a spherical shape are called ________.
A. coccus B. bacillus C. spheroid D. spirillum
Hybrid breakdown is characterized by:
a. sterility of the progeny of hybrid individuals. b. sterility of hybrid adults. c. death during pregnancy of hybrid females. d. death during early life of hybrid embryos. e. early death of hybrid embryos.