In a dihybrid cross using Mendelian inheritance, if both parents are heterozygous for both traits, what will be the phenotypic ratio of their offspring?
A. 3:1
B. 1:2:1
C. 1:1
D. 9:3:3:1
D
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Growth of yeasts and molds will be favored in more acidic foods.
Answer the following statement true (T) or false (F)
A total of ______ codons code for ______ commonly occurring amino acids.
a. 20; 64 b. 64; 20 c. 4; 20 d. 20; 4
A scientific explanation that is conditional and requires more investigation is called a(n)
A) theory. B) hypothesis. C) control. D) fact. E) observation.
When NADH or NADPH transfers electrons to a recipient molecule, the recipient becomes reduced and the activated carries are oxidized (NAD+ or NADP+, respectively). What else happens during this reaction?
A.) a phosphate group is transferred to the recipient molecule B.) a proton is take up by the carrier C.) a proton is released into the solution D.) a proton is taken up by the recipient molecule E.) a molecule of water is released into the solution