Mendelian genetics

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What is Mendelian genetics?

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Mendelian genetics is the study of how traits are inherited through generations, based on the principles established by Gregor Mendel.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

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What is a hybrid organism?

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A hybrid organism has two different alleles for a trait, such as Cc.

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What does heterozygous mean?

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Heterozygous refers to having two different alleles for a specific gene, like Yy.

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NGSS.HS-LS3-2

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What does homozygous dominant mean?

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Homozygous dominant means having two identical dominant alleles for a trait, such as PP.

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What is a genotype?

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A genotype is the genetic makeup of an organism, represented by alleles, such as nn.

Tags

NGSS.HS-LS1-1

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What is a phenotype?

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A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

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NGSS.HS-LS4-3

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What is the expected percentage of hybrids in a monohybrid cross?

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In a monohybrid cross, the expected percentage of hybrids is 50%.

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What is the difference between dominant and recessive alleles?

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Dominant alleles mask the effect of recessive alleles in heterozygous conditions.

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What is a Punnett square?

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A Punnett square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.

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What is the law of segregation?

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The law of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.