T6 NC EOC Review: Mendelian Genetics & Gene Expression

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What are dominant alleles?

Back

Dominant alleles are alleles that always show up and mask other traits in an organism's phenotype.

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What is the F1 generation?

Back

The F1 generation is the first generation of offspring produced by the parents in a genetic cross.

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Who is known as the 'Father of Modern Genetics'?

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Gregor Mendel is known as the 'Father of Modern Genetics' for his study of pea plants and foundational work in genetics.

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True or False? Phenotype determines genotype.

Back

False. Genotype refers to the genetic makeup, while phenotype refers to the observable traits.

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What is a sister chromatid?

Back

A sister chromatid is one of the two identical halves of a duplicated chromosome, held together by the centromere.

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What are recessive alleles?

Back

Recessive alleles are alleles that are masked by dominant alleles and only express their traits when two copies are present.

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What does homozygous mean?

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Homozygous refers to having two identical alleles for a particular gene.

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What does heterozygous mean?

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Heterozygous refers to having two different alleles for a particular gene.

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What is a phenotype?

Back

Phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What is a genotype?

Back

Genotype is the genetic constitution of an individual, representing the alleles inherited from the parents.