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What are the pair of alleles for a trait and how do they determine the expression of that trait?
Alleles are pairs of genes that determine a specific trait in an organism. Each parent contributes one allele, and the combination of alleles determines how the trait is expressed. If the alleles are the same (homozygous), the trait will be expressed in a certain way. If the alleles are different (heterozygous), one allele may be dominant and determine the trait's expression, while the other may be recessive and not expressed.
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What is the name for each gene in a pair of genes that might or might not carry the same info about a trait?
the name is hybrids
What is a member of a gene pair that determines a specific trait?
An allele is one of the possible variations of a gene that can determine a specific trait. Alleles come in pairs, with one allele inherited from each parent, and the combination of alleles present determines the expression of the trait.
What do geneticists call alleles that are both expressed in the phenotype when they are together?
Genetic makeup formed from both inherited alleles together is called a genotype. Homozygous alleles would be a pair of identical alleles for a single trait. Heterozygous is different alleles for a single trait.
Traits are determined by pairs of genes called?
The two chromosomes (two "X" shapes) that are in a pair are generally called "homologous chromosomes". A pair of "chromatids" make up the two arms of a single chromosome.
What is the relationship between genes and alleles?
The gene loci are the sites where the alleles reside on the DNA strand. Alleles at the same gene locus on each chromosome pair will determine the phenotypic expression of that gene pair. Of course this explanation is incomplete when more complex interactions between alleles come into play
What is the name for each gene in a pair of genes that might or might not carry the same info about a trait?
the name is hybrids
Does a single pair of alleles always determine an individual trait?
No, often many other alleles will also determine the same trait. For example, many alleles put together will determine a person's skin color.
What is a member of a gene pair that determines a specific trait?
An allele is one of the possible variations of a gene that can determine a specific trait. Alleles come in pairs, with one allele inherited from each parent, and the combination of alleles present determines the expression of the trait.
What is the difference between a single gene and a polygenics trait?
A polygenic trait is a trait in which multiple sets of alleles are used to determine the trait, whereas in a single gene trait aka. a Mendelian trait, only one pair of alleles is used.
Normally how many chromosomes are required to determine the outward expression of a trait?
homologous pair
When a pair of chromosomes contains different alleles for a trait that trait is called a what when a trait has two identical alleles it is called?
2 different alelles - heterozygous Same alelles - homozygous
What is a domainit trait?
A dominant trait is a genetic trait that is expressed when an individual has one copy of the dominant allele. In a pair of alleles (one from each parent), the dominant allele will mask the expression of the recessive allele.
What are two alleles that are different for a trait?
They are known as a heterozygous pair
What are the two alleles that control the appearance of a trait?
Dominant and Recessive Alleles Diploid organisms typically have two alleles for a trait. When allele pairs are the same, they are homozygous. When the alleles of a pair are heterozygous, the phenotype of one trait may be dominant and the other recessive.
When more than one pair of alleles controls a trait is called?
When more than one pair of alleles controls a trait, it is called polygenic inheritance. This means that multiple genes contribute to the expression of a trait, leading to a continuous range of variation rather than distinct categories. Examples of traits controlled by polygenic inheritance include height, skin color, and intelligence.
What is The different forms of a trait that make up a gene pair?
alleles
In humans a trait can be determined by one pair of many pairs of?
alleles.
