Mendelian Genetics and DNA Fundamentals Quiz

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

In Mendelian genetics, what term is used to describe the physical appearance of an organism?

• Genotype

• Phenotype

• Allele

• Chromosome

Which base is NOT found in DNA?

• Adenine

• Cytosine

• Uracil

• Thymine

What process copies DNA before cell division?

• Transcription

• Translation

• Replication

• Mitosis

Tags

NGSS.HS-LS3-2

In a Punnett square, what does a capital letter represent?

• A recessive trait

• A dominant trait

• A genotype

• A phenotype

What is the result of incomplete dominance?

• Offspring with a phenotype that is a blend of the parents' phenotypes

• Offspring with a phenotype exactly like one of the parents

• Offspring with a phenotype that is completely different from both parents

• Offspring with a phenotype that shows both traits equally

Which molecule is responsible for carrying the genetic code from DNA to the ribosome for protein synthesis?

• rRNA

• mRNA

• tRNA

• DNA polymerase

What is the role of tRNA in protein synthesis?

• It replicates DNA.

• It carries amino acids to the ribosome.

• It transcribes DNA into RNA.

• It helps in the replication of the ribosome.

In codominance, what is observed in the phenotype of the offspring?

• A blend of both parents' traits

• Only the dominant trait

• Traits from both parents equally expressed

• Only the recessive trait

Tags

NGSS.HS-LS3-1

Which of the following is the correct sequence of events in protein synthesis?

• Translation, Transcription, Replication

• Replication, Transcription, Translation

• Transcription, Translation, Replication

• Transcription, Replication, Translation