Genetic Vocabulary

Front

What is a recessive allele?

Back

The allele that is 'weaker'. The offspring will not have the trait represented unless there are two of these alleles.

Tags

NGSS.HS-LS3-2

Front

What does heterozygous mean?

Back

Heterozygous is when the alleles are different.

Front

What does homozygous mean?

Back

If two alleles are the same for a certain trait, they are considered homozygous.

Front

What is a phenotype?

Back

What you see, or the physical appearance of an organism.

Front

What is a genotype?

Back

The genetic makeup of an organism, representing the alleles present.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Front

What is a dominant allele?

Back

The allele that is 'stronger'. The trait represented by this allele will be expressed even if only one copy is present.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is the relationship between alleles and traits?

Back

Alleles are different forms of a gene that determine specific traits in an organism.

Tags

NGSS.HS-LS3-1

Front

What is the significance of DNA base pairing?

Back

DNA bases pair in a specific way: Adenine (A) pairs with Thymine (T), and Cytosine (C) pairs with Guanine (G).

Front

What is the complementary DNA strand for CAT TCA CTG?

Back

The complementary strand is GTA AGT GAC.

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.