Biology - OM Vocab | Baamboozle - Baamboozle | The Most Fun Classroom Games!

What is a testcross?

experimental cross of an individual organism of dominant phenotype but unknown genotype and an organism with a homozygous recessive genotype

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What's the difference between homozygous and heterozygous?

Homozygous alleles look the same, while heterozygous alleles are different

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What pattern of inheritance does the disease (Lorenzo had) show?

X-linked (Sex-linked) inheritance

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Human blood type exhibits which two types of non-Mendelian traits?

Co-dominance or incomplete dominance

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What's the difference between dominant and recessive genes?

Dominant genes overrule others. Recessive genes are part of your genes, but not usually expressed if the dominant overrules it.

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What is a polygenic trait? Give an example of a human polygenic trait.

A polygenic trait is a characteristic, such as height or skin color, that is influenced by two or more genes

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Can a man be a carrier of a non sex-linked trait?

Yes, males can carry non-sex linked traits.

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What's the difference between a gene & an allele?

A gene is a portion of DNA that determines a certain trait. An allele is a specific form of a gene.

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What happens to the myelin around the nerve cells of ALD boys? What causes this change to occur?

buildup of very long chain fatty acids (VLCFAs) in the brain that destroy the protective myelin sheath around nerve cells.

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What is a sex-linked gene?

Sex-linked, as related to genetics, refers to characteristics (or traits) that are influenced by genes carried on the sex chromosomes

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What is true breeding?

A true-breeding organism is an organism that always passes down certain traits multiple generations in a row.

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What is myelin?

Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord

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What are the three different alleles exhibited in human blood type?

There are three different alleles, known as IA, IB, and i.

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