Reproduction and DNA Quiz
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5 questions, one answer each
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1. Which statement correctly describes a key difference between sexual and asexual reproduction?
- A. Sexual reproduction produces genetically identical offspring; asexual reproduction produces variation
- B. Asexual reproduction produces genetically identical offspring; sexual reproduction produces variation
- C. Both sexual and asexual reproduction produce genetically identical offspring
- D. Sexual reproduction is faster than asexual reproduction
2. What is the correct complementary base pairing rule in DNA?
- A. Adenine pairs with Cytosine; Thymine pairs with Guanine
- B. Adenine pairs with Thymine; Cytosine pairs with Guanine
- C. Adenine pairs with Guanine; Thymine pairs with Cytosine
- D. Adenine pairs with Thymine; Cytosine pairs with Thymine
3. A nucleotide contains three main components. Which of the following is NOT one of them?
- A. A phosphate group
- B. A deoxyribose sugar
- C. A nitrogenous base
- D. A ribosome
4. During protein synthesis, which process occurs at the ribosome and uses mRNA as a template?
- A. Transcription, which creates mRNA from DNA
- B. Translation, which creates a protein from mRNA
- C. Replication, which creates identical DNA copies
- D. Mutation, which changes the base sequence in DNA
5. The genetic code is described as a 'triplet code'. What does this mean in terms of how genes code for proteins?
- A. Each base codes for one amino acid
- B. Each set of three consecutive bases (a codon) codes for one specific amino acid
- C. Three genes are needed to code for one protein
- D. Three ribosomes are required to translate one mRNA molecule