Genes and Alleles

A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A version or variation of a gene

• trait

• gene

• allele

• DNA

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-3

The alleles that an organism has/inherits are its

• genotype

• phenotype

• chromosome

• recessive

Tags

NGSS.HS-LS3-1

When an organism has two of the same alleles, it is called

• homozygous

• heterozygous

• recessive

• dominant

Different variations of a gene are called?

• Alleles

• DNA

• Chromosome

• Gene

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

The different forms of a gene are called 

• traits

• chromosomes

• alleles

• peas

​ (a)   are different forms of a ​ (b)  

• Alleles

• gene

Answer explanation

Alleles and genes are different forms of a gene, with alleles representing different versions of a gene.

Alternate form of genes are called?

• Chromosomes

• Alleles

• Dominants

• Recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are alleles?

• The different forms of a gene.

• All of the DNA inside one cell

• Coiled up sections of DNA.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Recessive alleles are-

• capital

• lowercase

• both

• neither