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Lesson Worksheet: Inheritance of Genes Science

In this worksheet, we will practice describing the inheritance of chromosomes and genes from parent to offspring and explaining the difference between dominant and recessive genes.

Q1:

DNA is passed from parents to their offspring. What key term is given to this process?

  • ACloning
  • BTransferring
  • CVariation
  • DInheritance
  • ECopulation

Q2:

Your body cells contain 46 chromosomes. Which of the following is true about these chromosomes?

  • AAll of the chromosomes were inherited from your biological father.
  • BAll of the chromosomes were inherited from your biological mother.
  • C90% was inherited from your biological mother and 10% from your biological father.
  • DHalf was inherited from your biological mother and half from your biological father.

Q3:

Inside the nucleus of your cells, DNA is wound and coiled into long strands. What are these long strands of DNA called?

  • AHelices
  • BGenes
  • CNucleosomes
  • DChromosomes
  • ERibosomes

Q4:

Human sex cells (sperm for males and eggs for females) are also referred to as gametes. How many chromosomes does a normal human gamete contain?

Q5:

Which of the following diagrams correctly shows how chromosomes are passed from parents to their offspring?

  • A
  • B
  • C
  • D

Q6:

The diagram shows a basic outline of the process of fertilization. How many chromosomes will be in the nucleus of the sperm cell?

Q7:

The diagram shows a basic outline of the process of fertilization.

After fertilization, a zygote forms. The zygote shown in the diagram has 4 cells. How many chromosomes will be in the nucleus of each of these cells?

Q8:

The diagram provided shows how eye color can be inherited in humans. The gene that produces brown eyes is dominant to the gene that produces blue eyes. What color will the child’s eyes be?

  • AGreen
  • BOne brown and one blue
  • CGray
  • DBrown
  • EBlue

Q9:

The diagram provided shows how eye color can be inherited in humans. What term is given to the gene that produces blue eyes in this example?

  • ASubmissive
  • BInactive
  • CRecessive
  • DPassive
  • EDominant

Q10:

The diagram provided shows how eye color can be inherited in humans. What term is given to the gene that produces brown eyes in this example?

  • AActive
  • BDominant
  • CPhenotypic
  • DRecessive
  • EAssertive

This lesson includes 21 additional questions for subscribers.

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