What does it mean to say an individual is heterozygous for a particular trait?

Heterozygous refers to having inherited different forms of a particular gene from each parent. A heterozygous genotype stands in contrast to a homozygous genotype, where an individual inherits identical forms of a particular gene from each parent.

What happens if an individual is heterozygous for a particular trait?

Heterozygous refers to having different alleles for a particular trait. When alleles are heterozygous in complete dominance inheritance, one allele is dominant and the other is recessive. The genotypic ratio in a heterozygous cross where both parents are heterozygous for a trait is 1:2:1.

What does it mean if you are heterozygous for a trait quizlet?

heterozygous. an organism that has two different alleles for a trait (hybrid) Punnett Square. a chart that shows all of the possible combinations of alleles that can result in a genetic cross.

Is an individual heterozygous?

A heterozygous individual is someone who has two different alleles at a locus. For instance, using the sickle cell example, a heterozygous individual might have a genotype of AS. A homozygous individual has two identical alleles at a locus. The genotype for a homozygous individual might be AA or SS.

What is an example of a heterozygous trait?

If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.

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Which allele tends to be hidden if an individual is heterozygous for a trait?

The presence of an allele does not promise that the trait will be expressed in the individual that possesses it. In heterozygous individuals, the only allele that is expressed is the dominant. The recessive allele is present, but its expression is hidden.

What is meant by genotype?

In a broad sense, the term “genotype” refers to the genetic makeup of an organism; in other words, it describes an organism’s complete set of genes. Each pair of alleles represents the genotype of a specific gene. … For example, in sweet pea plants, the gene for flower color has two alleles.

What is the exact position of a gene on a chromosome?

Explanation: The exact position or location of a gene on a particular chromosome is referred to as the locus (plural: loci). Sometimes when gametes are formed, they can contain an extra copy of one chromosome. This leads to three copies of a particular chromosome.

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