DNA/Genetics

Who took the x-ray photograph of DNA?

• Gregor Johann Mendel

• Mendel

• Rosalind Franklin

• Watson and Crick

What is the shape of DNA?

• Single helix

• Double helix

• Triple helix

• Circular

What are the components of a DNA nucleotide?

• Amino acid, sugar, base

• Phosphate, base, amino acid

• Sugar, phosphate, amino acid

• Sugar, phosphate, nitrogenous base

Which nitrogenous base is not found in DNA?

• Guanine

• Cytosine

• Uracil

• Adenine

What pairs with Adenine in DNA?

• Uracil

• Guanine

• Cytosine

• Thymine

What is the role of mRNA?

• Carries amino acids to the ribosome

• Copies the message from DNA and carries it to the ribosome

• Joins nucleotides to synthesize a new DNA strand

• Carries genetic information from the nucleus to the cytoplasm

What is the principle of dominance?

• Dominant alleles are always hidden

• All alleles are dominant

• Some alleles are dominant and some are recessive

• Alleles are always recessive

What is a genotype?

• Genetic makeup or alleles

• Two different alleles for a trait

• Physical appearance

• Two identical alleles for a trait

What does DNA stand for?

• Dinucleic acid

• Deoxyribonucleic acid

• Dinucleotide acid

• Deoxyribonucleotide acid

What is the function of tRNA?

• Copies the message from DNA

• Synthesizes new DNA strands

• Replicates DNA

• Carries amino acids to the ribosome