Genetics 7th Grade Science

Front

What is a hybrid in genetics?

Back

A hybrid is a heterozygous dominant offspring, meaning it has two different alleles for a trait.

Front

What term describes the visible traits in organisms, such as hair color and eye color?

Back

Phenotype refers to the observable characteristics of an organism.

Tags

NGSS.MS-LS4-2

Front

What is the genetic makeup of an organism represented by letters called?

Back

Genotype is the genetic constitution of an individual, represented by letters.

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the outcomes of phenotypes and genotypes when parents' genes are crossed.

Tags

NGSS.HS-LS3-2

Front

What does the genotype 'pp' represent?

Back

The genotype 'pp' is homozygous recessive.

Front

What are alleles?

Back

Alleles are different forms of a gene that can exist at a specific locus on a chromosome.

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous means having two identical alleles for a trait, while heterozygous means having two different alleles.

Front

What is the role of genes in inheritance?

Back

Genes are units of heredity that carry information for traits from parents to offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is a dominant allele?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present.

Front

What is a recessive allele?

Back

A recessive allele is an allele that only expresses its trait when two copies are present.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2