Question: How are genes and alleles related quizlet?

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. … Alleles contribute to the organism’s phenotype, which is the outward appearance of the organism. Some alleles are dominant or recessive.

What is the relationship between a gene and an allele give an example?

Gene vs allele: chart

Gene Allele
Determines An organism’s genotype An organism’s phenotype
Number per genus locus One Two
Various Types Alleles Paternal vs maternal Dominant vs recessive
Examples Eye color, hair color, skin pigmentation Blue eyes, brown hair, dark skin

Hint: Gene is the sequence of DNA that codes for a protein; Locus is the physical location of a gene on the chromosome while the allele is the alternative form of a gene.

Can a gene have more than 2 alleles?

Although individual humans (and all diploid organisms) can only have two alleles for a given gene, multiple alleles may exist in a population level, and different individuals in the population may have different pairs of these alleles.

What is gene example?

For example, if both of your parents have green eyes, you might inherit the trait for green eyes from them. Or if your mom has freckles, you might have freckles too because you inherited the trait for freckles. Genes aren’t just found in humans — all animals and plants have genes, too.

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Where do alleles come from?

One allele for every gene in an organism is inherited from each of that organism’s parents. In some cases, both parents provide the same allele of a given gene, and the offspring is referred to as homozygous (“homo” meaning “same”) for that allele.

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