Exploring DNA and Inheritance

What is the shape of a DNA molecule?

• Single strand

• Circular loop

• Flat ribbon

• Double helix

What are the building blocks of DNA called?

• Monosaccharides

• Fatty acids

• Nucleotides

• Amino acids

What does DNA stand for?

• Dioxyribonucleic Acid

• Deoxyribonitric Acid

• Deoxyribonucleic Acid

• Deoxyribonucleic Base

What are genes?

• Genes are segments of DNA that encode instructions for protein synthesis.

• Genes are structures that store nutrients for the body.

• Genes are the basic units of energy in cells.

• Genes are proteins that perform cellular functions.

What is an allele?

• An allele is a complete set of genes.

• An allele is a variant form of a gene.

• An allele is a type of chromosome.

• An allele is a protein that influences traits.

How many alleles do we inherit from each parent?

• 2 alleles

• 4 alleles

• 3 alleles

• 1 allele

What is the function of DNA in living organisms?

• DNA helps in the digestion of food.

• The function of DNA in living organisms is to store and transmit genetic information.

• DNA is responsible for energy production in cells.

• DNA acts as a catalyst for chemical reactions.

What are the four bases of DNA?

• Adenine, Uracil, Cytosine, Guanine

• Guanine, Thymine, Cytosine, Adenine

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Thymine, Cytosine, Uracil

What is the difference between a dominant and a recessive allele?

• A dominant allele is always more common in a population than a recessive allele.

• Both dominant and recessive alleles require two copies to express their traits.

• A dominant allele requires two copies to express its trait, while a recessive allele expresses its trait with one copy.

• A dominant allele expresses its trait with one copy, while a recessive allele requires two copies to express its trait.

What is a phenotype?

• The genetic makeup of an organism.

• The evolutionary history of an organism.

• The environment in which an organism lives.

• The observable traits of an organism.