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An organism is considered homozygous when it has two identical alleles for a specific gene, one inherited from each parent. This means that both alleles express the same trait, whether dominant or recessive. For example, if an organism has two alleles for blue eyes (bb), it is homozygous for that trait. In contrast, heterozygous organisms possess two different alleles for a gene.
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What does it mean that an organism is homozygous dominant for a trait?
Homozygous Dominant for a trait means that an organism has two dominant alleles for that trait. Here's an example: Trait: Widow's Peak Widow's Peak allele: Dominant (D) No widow's peak allele: Reccessive(d) Homozygous Dominant (DD) Homozygous Reccessive (dd) Heterozygous (Dd)
What cross should a scientist perform in order to determine if the organism is heterozygous or homozygous dominant?
The scientist should perform a test cross between the organism and a homozygous recessive organism. If all offspring show the dominant trait, the original organism is homozygous dominant. If some offspring show the recessive trait, the original organism is heterozygous.
What is it called when an organism that has two alleles that are the same?
the organism that have two identical alleles would be called homozygous for that particular gene.
What is the term used to refer to an organism that has two indentical alleles for the particular trait?
The term used to refer to an organism that has two indentical alleles for the particular trait is homozygous. A trait could be homozygous dominant (TT), homozygous recessive (tt), or homozygous for incomplete dominance (rr).
How is the combination of genes important in determining the inheritance of biological traits?
The genes an organism contains is called the organism's genotype.
An individual with two identical alleles of a gene is?
An organism that has two identical alleles for a trait is known as a homozygote or a homozygous organism.
If an organism has alleles BB?
The organism is homozygous dominant for that trait.
What does it mean that an organism is homozygous dominant for a trait?
Homozygous Dominant for a trait means that an organism has two dominant alleles for that trait. Here's an example: Trait: Widow's Peak Widow's Peak allele: Dominant (D) No widow's peak allele: Reccessive(d) Homozygous Dominant (DD) Homozygous Reccessive (dd) Heterozygous (Dd)
Can an organism that is homozygous for flower color have genotype Qq?
No, an organism that is homozygous for a specific trait means it has two identical alleles for that trait. Therefore, an organism that is homozygous for flower color would have the genotype QQ, not Qq.
What cross should a scientist perform in order to determine if the organism is heterozygous or homozygous dominant?
The scientist should perform a test cross between the organism and a homozygous recessive organism. If all offspring show the dominant trait, the original organism is homozygous dominant. If some offspring show the recessive trait, the original organism is heterozygous.
An organism that has two identical alleles for a trait?
An organism that has two identical alleles for a trait is said to be homozygous for that trait. This means that both alleles are the same, either dominant or recessive. Homozygosity results in a consistent expression of the trait in the organism.
What is the difference between homozygote and homozygous?
A homozygote is a homozygous organism. An organism can be a heterozygote or a homozygote. "Hetero" means different and "Homo" means the same.
What is it called when an organism that has two alleles that are the same?
the organism that have two identical alleles would be called homozygous for that particular gene.
What is the term used to refer to an organism that has two indentical alleles for the particular trait?
The term used to refer to an organism that has two indentical alleles for the particular trait is homozygous. A trait could be homozygous dominant (TT), homozygous recessive (tt), or homozygous for incomplete dominance (rr).
An organismwith two like genes for a triat is called what for that trait?
An organism with two like genes for a trait is called homozygous for that trait.
An organism that is true breeding for a trait is said to be?
Homozygous
What is an organism that has two identical factors for a trait?
Homozygous
