C 190 / C190 Pre - Assessment V2 (Latest Update 2025 / 2026) Introduction to Biology | Questions & Answers | 100% Correct | Grade
A - WGU
Question:
Which type of cell division results in sex cells?
- -Mitosis
- -Meiosis
- -Interphase
- -Prophase
Answer:
Meiosis
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Question:
Which characteristic describes both meiosis and mitosis?
- -Sister chromatids separate
- -There are two rounds of division
- -Genetically identical offspring are produced
- -Results in diploid cells
Answer:
Sister chromatids separate
Question:
What is a characteristic of DNA but not RNA?
- -It is intertwined with histone proteins.
- -It sometimes functions as an enzyme.
- -It is directly copied to form proteins.
- -It is single stranded.
Answer:
It is intertwined with histone proteins.
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Question:
A fly is heterozygous for wing length, carrying one allele for the dominant long-winged appearance and one allele for the recessive short-winged appearance.
Which percentage of the fly's gametes will carry the short-winged allele?
- -25%
- -50%
- -75%
- -100%
Answer:
50%
Question:
Black (B) is the dominant color, and red (b) is the recessive color in a species of beetle. Two beetles that are both Bb are crossed.What percentage of the offspring will be red?
- -25%
- -50%
- -75%
- -100%
Answer:
25% 3 / 4
Question:
A species of fish can either have dominant red fins (R) or recessive white fins (r). Fin lengths can either be dominant long (L) or recessive short (l). A dihybrid cross is performed on two of these fish. Each fish is heterozygous for the traits of fin color and fin length.
Which four gamete genotypes can be produced by a parent fish? Choose 4 answers
- -R
- -R l
- -r l
- -Rr L
- -R L
- -r L
- -r
- -Rr Ll
Answer:
R l & r l & R L & r L
Question:
Consider the results of a dihybrid cross, where Y refers to black fur, y refers to white fur, S refers to short fur, and s refers to long fur. Capitalized letters refer to dominant traits, and lowercase letters refer to recessive traits. The following
are the results:
YYSS, YYSs, YySS, YySs, YYSs, YYss, YySs, Yyss, YySS, YySs, yySS, yySs, YySs, Yyss, yySs, yyss
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