IB SEHS Topic 12 Review

Which term is defined correctly?

• A

• B

• C

• D

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

An athlete wants to improve their performance to become an elite high jumper. Which factors are predominantly environmental?

I.   A history of plyometric training

II.  A tall athlete with a low body mass

III. A balanced diet

• I and II only

• I and III only

• II and III only

• I, II and III

How can genes influence human characteristics?

I. Single genes always determine measurable human characteristics.

II. Genes affect the development of an individual.

III. Genes can be switched on by external factors.

• I and II only

• I and III only

• II and III only

• I, II and III

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A sporting institute sets up a talent ID programme. Which data would be most relevant?

• Ancestry

• Income

• Nationality

• Diet

Which statement is correct regarding gene expression?

• Traits like VO₂ max and height are inherited and cannot be altered by environmental influence.

• Traits like VO₂ max and height are not inherited but rely on environmental influence to reach their full potential.

• Phenotypic expression or human characteristics cannot be determined by genotype.

• The number of possible outcomes for human characteristics is limited due to the contribution from only two parents.

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NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How can genes influence human characteristics?

• Genes code for carbohydrates, which are responsible for the development of an individual.

• Only a single, or at most a few, genes are responsible for superior athletic performance.

• The physical expressions of human characteristics are called genotypes.

• Genes can be switched on or off depending on internal or external factors.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which statement is correct?

• Children inherit all of their genes from their mother.

• All human characteristics are expressed developmentally.

• Some characteristics require an environmental switch.

• Genotypes are determined by phenotypes.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which is an environmental factor that influences performance?

• Training

• Muscle fibre type

• Height

• Lung capacity

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NGSS.HS-LS2-6

Which factor has the greatest effect on an elite athlete’s performance?

• Specificity of training

• Inherited characteristics

• Elite coaching

• Presently not known

Which human characteristic is influenced by the environment?

• Eye color

• Blood type

• Gender

• VO₂max

Tags

NGSS.HS-ESS3-1