DNA, RNA, and Inheritance Quiz

Which of the following best describes the role of RNA in the process of transcription?

• RNA serves as a template for DNA synthesis.

• RNA carries amino acids to the ribosome.

• RNA is synthesized from a DNA template.

• RNA forms the structure of ribosomes.

Tags

GA.SB2.a.

In the context of translation, what is the function of mRNA?

• It provides the energy for protein synthesis.

• It carries the genetic code from DNA to the ribosome.

• It forms the structure of the ribosome.

• It transports amino acids to the ribosome.

Tags

GA.SB2.a.

If a heterozygous tall plant (Tt) is crossed with a homozygous short plant (tt), what is the probability of obtaining a short plant?

• 0%

• 25%

• 50%

• 75%

Tags

GA.SB3.b.

What is the role of tRNA during translation?

• It synthesizes proteins directly.

• It carries genetic information from the nucleus.

• It transports amino acids to the ribosome.

• It forms the structure of the ribosome.

Tags

GA.SB2.a.

Which of the following best explains the concept of codominance in genetics?

• One allele completely masks the effect of another.

• Both alleles in a heterozygote are fully expressed resulting in spots or stripes.

• The phenotype is a blend of both alleles.

• Neither allele is expressed in the phenotype.

Tags

GA.SB3.b.

In a dihybrid cross between two heterozygous individuals (AaBb x AaBb), what is the expected phenotypic ratio?

• 9:3:3:1

• 3:1

• 1:2:1

• 1:1

Tags

GA.SB3.b.

What is the significance of the start codon in mRNA?

• It signals the end of protein synthesis.

• It signals the ribosome to begin protein production.

• It signals the beginning of DNA replication.

• It codes for the last amino acid in a protein.

Tags

GA.SB2.a.

Which of the following best describes the concept of incomplete dominance?

• One allele is completely dominant over the other.

• Both alleles are equally expressed in the phenotype.

• The phenotype is a blend of both alleles (red+white=pink).

• Neither allele is expressed in the phenotype.

Tags

GA.SB3.b.

In a genetic cross, what does the term "homozygous" mean?

• An organism is "hybrid" or has two different alleles for a trait.

• An organism is "purebred" or has two identical alleles for a trait.

• An organism is "purebred" or has one allele for a trait.

• An organism is "hybrid" or has no alleles for a trait.

Tags

GA.SB3.b.

What is the role of ribosomes in the process of translation?

• They carry genetic information from the nucleus.

• They synthesize proteins by linking amino acids.

• They transport amino acids to the mRNA.

• They unwind the DNA strands.

Tags

GA.SB2.a.