Genetics

Genetics

Assessment

Flashcard

Biology

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a homozygous recessive genotype?

Back

A genotype consisting of two identical recessive alleles, represented as 'bb'.

2.

FLASHCARD QUESTION

Front

What is a phenotype?

Back

The physical expression or characteristics of an organism, such as 'blue eyes'.

3.

FLASHCARD QUESTION

Front

What is a Punnett Square used for?

Back

A tool used to predict the genotypes and phenotypes of offspring from a genetic cross.

4.

FLASHCARD QUESTION

Front

What is the genotypic ratio when crossing two heterozygous plants (Tt x Tt)?

Back

1:2:1, representing the possible genotypes: TT, Tt, and tt.

5.

FLASHCARD QUESTION

Front

What is the phenotypic ratio when crossing two heterozygous plants (Tt x Tt)?

Back

3:1, representing the ratio of tall to short plants.

6.

FLASHCARD QUESTION

Front

Define genotype.

Back

The genetic makeup of an organism, represented by the combination of alleles (e.g., BB, Bb, bb).

7.

FLASHCARD QUESTION

Front

What does it mean if an allele is dominant?

Back

It means that the allele will express its trait even if only one copy is present (e.g., T in Tt).

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