Genes and Alleles Biology Quiz

Questions and Answers

Genes code for specific traits.

A gene specifies the trait, while an allele specifies the form of the gene.

Different options for eye color, such as green, brown, gray, blue, or hazel.

<p>No, there is not a one-to-one relationship between genes and traits.</p> Signup and view all the answers

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Study Notes

Genes are sections of DNA that code for specific traits.
Humans have thousands of genes that determine various characteristics, such as eye color, hand size, metabolism, and cell structure.
It's not a one-to-one relationship between genes and traits, but basic biology classes often simplify it this way.

Alleles are different forms of the same gene, akin to different flavors or varieties.
Using the analogy of Coca Cola as a gene, alleles would be Diet, Classic, Caffeine Free, Vanilla, Cherry, etc.
With the eye color gene, alleles would be green, brown, gray, blue, hazel, representing different options for eye color.
Key takeaway: the gene specifies which trait, and the allele specifies what form the gene takes.

Genes are specific DNA sections that code for particular traits, such as eye color, hand size, and metabolism.
Humans possess thousands of genes, which collectively determine various characteristics.
The relationship between genes and traits is more complex than a simple one-to-one correspondence.

Alleles are different versions of the same gene, analogous to diverse flavors or varieties of a product.
For instance, if a gene is considered Coca Cola, its alleles would be Diet, Classic, Caffeine Free, Vanilla, Cherry, and so on.
In the context of the eye color gene, alleles include green, brown, gray, blue, and hazel, representing distinct options for eye color.
Crucial distinction: a gene specifies the trait, while an allele specifies the particular form that trait takes.