Alleles and Gene

One gene from a gene pair (alternate form of a gene)

• Gene

• Chromosome

• Allele

• Trait

A trait that is masked by the dominant trait. This type of trait only appears if two recessive alleles for the same characteristic are inherited. It will be represented by a lowercase letter.

• Recessive

• Dominant

• Homozygous

• Allele

An organism that has two different alleles for a trait is...

• Purebred/Homozygous

• Hybrid/Heterozygous

• Mixed

• Phenotype

Having two identical alleles of a particular gene or genes.

• Homozygous/Purebred

• Hybrid/Heterozygous

• Traits

• Genotype

DNA segments found on chromosomes that determines the inheritance of a particular trait

• Alleles

• Traits

• Genes

• Genotypes

Tags

NGSS.HS-LS3-1

A genetic trait that is represented with a capital letter and will always show if it is present.

• Recessive

• Purebred

• Dominant

• Gene

How many alleles for the same gene do offspring get?

• 1

• 2

• 23

• 100's to 1000's

Tags

NGSS.HS-LS3-1

What is a variation of a particular gene such as brown and blue eyes?

• Karyotype

• DNA

• Allele

• Chromosome

Tags

NGSS.HS-LS3-2

How many genes can a chromosome contain?

• 100's to 1000's

• 23

• 48

• 2

Which of the following can a homologous pair of chromosomes contain?

• always 2 different alleles for the same gene

• always 2 of the same allele for a gene

• either 2 of the same allele or 2 different alleles for the same gene