Unit 4: DNA/GENETICS REVIEW

What is the basic unit of heredity?

• Chromosome

• Gene

• Cell

• Protein

True or False: DNA stands for Deoxyribonucleic Acid.

• True

• False

Which of the following is a dominant trait?

• Blue eyes

  BB

• Brown eyes

  bb

• Green eyes

  gg

• Hazel eyes

  hh

Tags

NGSS.HS-LS3-1

Fill in the blank: The physical appearance of a trait in an allele is called its _______.

• Genotype

• Phenotype

• Chromosome

• Allele

True or False: A Punnett square is used to predict the possible genotypes of offspring.

• True

• False

What are the building blocks of DNA?

• Amino acids

• Nucleotides

• Sugars

• Fatty acids

True or False: A recessive trait is always expressed if present.

• True

• False

Fill in the blank: The genetic makeup or "uppercase/ lower case letter code" of an organism is called its _______.

• Phenotype

• Genotype

• Chromosome

• Protein

Tags

NGSS.HS-LS3-1

Which of the following is NOT a base found in DNA?

• Adenine

• Thymine

• Guanine

• Uracil

True or False: In a Punnett square, capital letters represent dominant alleles.

• True

• False