Genes and Heredity Quiz SC.7.L.16.3

What is the function of chromosomes in the human body?

• Chromosomes contain genetic information

• Chromosomes regulate body temperature

• Chromosomes store energy in the human body

• Chromosomes produce hormones in the human body

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How many chromosomes are present in a human cell?

• 23

• 50

• 32

• 46

What are genes and what is their role in heredity?

• Genes are the result of environmental factors and have no role in heredity.

• Genes are only found in plants and have no role in heredity.

• Genes are not important for heredity and do not contain any instructions.

• Genes are the basic unit of heredity and they contain instructions for making proteins.

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Explain the difference between dominant and recessive genes.

• Dominant genes are always expressed, while recessive genes are only expressed when there are no dominant genes present.

• Dominant genes are only expressed in females, while recessive genes are only expressed in males.

• Dominant genes are more common in plants, while recessive genes are more common in animals.

• Dominant genes are always inherited from the mother, while recessive genes are always inherited from the father.

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What is a genetic mutation and how does it affect an organism?

• A genetic mutation is a change in the DNA sequence that can affect the structure and function of proteins, leading to different traits or diseases in an organism.

• A genetic mutation is a temporary change in the organism's appearance that has no long-term effects.

• A genetic mutation is a change in the organism's behavior caused by external factors.

• A genetic mutation is a type of virus that affects the organism's immune system.

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Describe the process of genetic recombination during meiosis.

• Genetic recombination occurs when homologous chromosomes exchange genetic material through crossing over.

• Genetic recombination is the process of creating an exact copy of the genetic material in the parent cell.

• Genetic recombination happens when chromosomes exchange genetic material with non-homologous chromosomes.

• Genetic recombination occurs when chromosomes separate into two identical sets.

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What is the significance of DNA in relation to genes and heredity?

• DNA is only found in plants, not in animals

• DNA carries the genetic information that determines an organism's traits and is passed from parent to offspring.

• DNA has no role in determining an organism's traits

• DNA is not passed from parent to offspring

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How do environmental factors influence gene expression?

• Environmental factors have no impact on gene expression

• Gene expression is only influenced by diet and exercise

• Gene expression is predetermined and cannot be influenced by the environment

• Environmental factors can affect gene expression by influencing the activity of specific genes or by modifying the structure of the DNA.

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Discuss the ethical implications of genetic engineering and gene editing.

• Ethical implications of genetic engineering are irrelevant

• There are no ethical implications, genetic engineering is completely safe

• Genetic engineering and gene editing have no impact on society

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What is the difference between genotype and phenotype?

• Genotype is the physical appearance of an organism, while phenotype is the genetic makeup.

• Genotype and phenotype are the same thing.

• Genotype is the genetic makeup of an organism, while phenotype is the physical appearance.

• Genotype is determined by the environment, while phenotype is determined by genes.

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