Genetics and heredity

What is a gene?

• A sequence of your DNA.

• A type of protein that builds muscle.

• A cell structure that produces energy.

• A molecule that carries oxygen in the blood.

What is the difference between sexual and asexual reproduction?

• Sexual reproduction involves one parent and does not combine genetic material.

• Asexual reproduction involves two parents and combines their genetic material.

• Sexual reproduction involves two parents and combines their genetic material, while asexual reproduction involves one parent and does not combine genetic material.

• Asexual reproduction is a process that requires fertilization.

What does homozygous mean?

• Having two identical alleles for a particular gene.

• Having two different alleles for a particular gene.

• Having one allele for a gene.

• Having no alleles for a gene.

What is a phenotype?

• The genetic makeup of an organism.

• The observable characteristics or traits of an organism.

• The process of natural selection.

• The evolutionary history of a species.

Which genotype is heterozygous?

• AA

• gg

• Gg

• GG

What is a chromosome?

• A structure made of DNA and proteins that contains genetic information.

• A type of protein that helps in cell division.

• A molecule that carries oxygen in the blood.

• A small organelle found in the cytoplasm of cells.

What is a recessive allele?

• An allele that expresses its trait regardless of the presence of other alleles.

• An allele that only expresses its trait when two copies are present.

• An allele that is always dominant over other alleles.

• An allele that has no effect on the phenotype.

What is heredity?

• The process of evolution over generations.

• The passing of traits from parents to offspring.

• The study of genetic mutations.

• The influence of environment on traits.

What is a genotype?

• The physical appearance of an organism.

• The genetic makeup of an organism.

• The environment in which an organism lives.

• The behavior patterns of an organism.

How do we represent alleles?

• With numbers.

• With colors.

• With letters.

• With symbols.