What fraction of offspring of the cross AaBb × AaBb would be homozygous for both the dominant alleles, assuming that they are on different chromosomes?
A: 1/16
B: 1/32
C: 1/4
D: 1/8
E: 1/64
Answer: A: 1/16
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How are the light-dependent and light-independent reactions of photosynthesis related?
A) The products of light-independent reactions are used in light-dependent reactions. B) The products of light-dependent reactions are used in light-independent reactions. C) The products of light-independent reactions must be present for light-dependent reactions to take place. D) They are not related.
Which enzyme is used by RNA viruses to directly replicate the viral RNA genome?
A. RNA-dependent DNA polymerase B. DNA-dependent RNA polymerase C. Reverse Transciptase D. RNA-dependent RNA polymerase
Baking bread and making wine are dependent on
fungi belonging to the a. Ascomycetes. b. Zygomycetes. c. Basidiomycetes. d. Chytrids. e. Glomeromycetes.
Exchange across a membrane requires
a. moisture only. b. transport proteins only. c. pressure gradients only. d. moisture and pressure gradients only. e. moisture, pressure gradients, and transport proteins.