One of two or more different versions of the same gene.

Allele that masks the presence of another allele for the same gene when they occur together in a heterozygote.

Alleles an individual inherits at a particular genetic locus.

Organism that inherits two different alleles for a given gene.

Organism that inherits two alleles of the same type for a given gene.

Offspring that results from a cross between two different types of parents.

Law of independent assortment

Mendel’s second law stating that factors controlling different characteristics are inherited independently of each other.

Mendel’s first law stating that the two factors controlling a characteristics separate and go to different gametes.

Position of a gene on a chromosome.

Tiny grains that bear the male gametes of seed plants and transfer sperm to female reproductive structures.

Fertilization in plants in which pollen is transferred to female gametes in an ovary.

Allele that is masked by the presence of another allele for the same gene when they occur together in a heterozygote.

Relationship between two alleles for the same gene in which both alleles are expressed equally in the phenotype of the heterozygote.

Relationship between the alleles for a gene in which one allele is only partly dominant to the other allele so an intermediate phenotype results.

Polygenic Characteristic

Characteristic, or trait, controlled by more than one gene, each of which may have two or more alleles.

The likelihood, or chance, than a certain event will occur.

Chart for determining the expected percentages of different genotypes in the offspring of two parents.

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

chapter 1

Term	Definition
Allele	One of two or more different versions of the same gene.
Dominant Allele	Allele that masks the presence of another allele for the same gene when they occur together in a heterozygote.
Genetics	The science of heredity.
Genotype	Alleles an individual inherits at a particular genetic locus.
Heterozygote	Organism that inherits two different alleles for a given gene.
Homozygote	Organism that inherits two alleles of the same type for a given gene.
Hybrid	Offspring that results from a cross between two different types of parents.
Law of independent assortment	Mendel’s second law stating that factors controlling different characteristics are inherited independently of each other.
Law of segregation	Mendel’s first law stating that the two factors controlling a characteristics separate and go to different gametes.
Locus	Position of a gene on a chromosome.
Pollen	Tiny grains that bear the male gametes of seed plants and transfer sperm to female reproductive structures.
Pollination	Fertilization in plants in which pollen is transferred to female gametes in an ovary.
Recessive Allele	Allele that is masked by the presence of another allele for the same gene when they occur together in a heterozygote.
Codominance	Relationship between two alleles for the same gene in which both alleles are expressed equally in the phenotype of the heterozygote.
Incomplete Dominance	Relationship between the alleles for a gene in which one allele is only partly dominant to the other allele so an intermediate phenotype results.
Polygenic Characteristic	Characteristic, or trait, controlled by more than one gene, each of which may have two or more alleles.
Probability	The likelihood, or chance, than a certain event will occur.
Punnett square	Chart for determining the expected percentages of different genotypes in the offspring of two parents.

Created by: Escarle

"Know" box contains:
Time elapsed:
Retries: