T2 Midterm Review

T2 Midterm Review

Assessment

Flashcard

Science

6th - 8th Grade

Practice Problem

Easy

Created by

Wayground Content

Used 1+ times

FREE Resource

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15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What does it mean to be homozygous?

Back

Having two of the same alleles for a trait, such as TT or tt.

2.

FLASHCARD QUESTION

Front

What does it mean to be heterozygous?

Back

Having two different alleles for a trait, such as Ll.

3.

FLASHCARD QUESTION

Front

What is a dominant allele?

Back

An allele that expresses its trait even when paired with a different allele.

4.

FLASHCARD QUESTION

Front

What is a recessive allele?

Back

An allele that only expresses its trait when paired with another recessive allele.

5.

FLASHCARD QUESTION

Front

What does a filled square represent in a pedigree chart?

Back

An affected male.

6.

FLASHCARD QUESTION

Front

What does a filled circle represent in a pedigree chart?

Back

An affected female.

7.

FLASHCARD QUESTION

Front

What could cause a species to go extinct?

Back

Drastic environmental changes that no one can adapt to.

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