Extra Genetics Review for Final

What are the advantages and disadvantages of asexual and sexual reproduction in organisms?

• Asexual reproduction is faster, but produces genetically identical offspring, while sexual reproduction is slower, but produces genetically diverse offspring.

• Asexual reproduction is slower, but produces genetically diverse offspring, while sexual reproduction is faster, but produces genetically identical offspring.

• Asexual reproduction is not possible in most organisms, while sexual reproduction is the only means of reproduction in all organisms.

• Asexual reproduction is not possible in plants, while sexual reproduction is the only means of reproduction in animals.

What is the primary role of a gene in a cell?

• To capture sunlight for energy

• To store genetic information

• To produce specific proteins

• To transport nutrients

How do mutations in genes affect an organism?

• They always cause harmful diseases

• They can change the structure and function of proteins

• They have no effect on the organism

• They always improve the organism's traits

What is the relationship between chromosomes and genes?

• Genes are found on chromosomes

• Genes are made up of chromosomes

• They are unrelated structures

• Chromosomes destroy genes

Which of the following best describes how traits are inherited?

• Traits are only inherited from the mother

• Traits are inherited through a combination of genes from both parents

• Traits are inherited through environmental factors only

• Traits are always identical to one parent

How might a mutation in a gene for a protein affect an organism?

• It would only affect the reproductive cells

• It could change the shape of the protein which could change its function

• It would always be beneficial to the organism

• It would not have any impact on the organism

How do variations in genetic information contribute to the diversity of traits in a population?

• By ensuring all organisms are identical

• By producing a variety of proteins that can result in different physical traits

• By preventing any changes in the traits of organisms

• By getting rid of any genetic differences

In humans, the gene for freckles (F) is dominant over the gene for no freckles (f). If both parents have the genotype Ff, what is the probability that their child will have freckles?

• 25%

• 50%

• 75%

• 100%

Which of the following is an example of a beneficial mutation?

• A mutation that causes a disease.

• A mutation that has no effect on the organism.

• A mutation that increases an organism's ability to find food.

• A mutation that results in a missing limb.

Which of the following best describes natural selection?

• Humans intentionally breed organisms for specific traits.

• Organisms randomly develop new traits.

• Organisms with favorable traits are more likely to survive and reproduce.

• All organisms within a species have identical traits.