Grade 7 Quick Quiz: Heredity and Traits Review
Description
A 5-question multiple-choice quiz on sexual vs asexual reproduction, inherited vs acquired traits, Punnett squares, inbreeding risks, and DNA packaging in the nucleus.
Learning Objectives
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Explain why sexual reproduction usually creates more genetic variation than asexual reproduction.
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Distinguish inherited traits from acquired or environmental traits using clear examples.
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Use a 2x2 Punnett square to determine the probability of a recessive trait appearing in offspring when both parents are carriers.
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Describe why inbreeding can increase the risk of genetic disorders over generations.
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Identify how DNA is packaged to fit inside a cell nucleus.
Content Preview
Preview of the PRISM content
Use the diagrams and notes below as needed. Answer each question by choosing the best option.
Assessment Questions
5 questionsWhich statement best explains why sexual reproduction usually creates more genetic variation than asexual reproduction? (See Diagram C-002 if helpful.)
Classify each trait as either Inherited (mostly genetic, present from birth) or Acquired/Environmental (developed from environment, choices, or life events). (See Diagram C-006 if helpful.)
Traits: 1) Blood type 2) Scar from a cut 3) Natural eye color 4) Ability to play the piano
Which option correctly classifies ALL four?
Two parents both show the dominant trait, but both are carriers for the recessive allele. Their genotypes are Bb and Bb.
Use the Punnett square (Diagram C-003). What is the percent chance that an offspring will show the recessive trait?
In a sexually reproducing species, why can inbreeding increase the risk of genetic disorders over multiple generations? (See Diagram C-004 if helpful.)
In a human cell, DNA is extremely long. If you stretched out the DNA from one cell, it would be about 2 meters (around 6 feet) long, yet it fits inside a nucleus that is only a few micrometers wide.
Which statement best explains how this is possible? (See Diagram C-005 if helpful.)
Resource Details
- Subject
- Science
- Language
- EN-US
- PRISM ID
- prism-quiz-g7-heredity-001