List the steps involved in Mendel's experiments on the garden peas.

Mendel first produced pure strains of plants by allowing the plants to self-pollinate over several generations. He then crossed plants that were pure for two contrasting traits. He the allowed the F1 generation plants to self-pollinate.

A trait controlled by a dominant allele masks the effects of other alleles for the same characteristic.

A trait controlled by a recessive allele has no observable effect on an organism's appearance when it is paired with a trait controlled by a dominant allele.

A segment of DNA on a chromosome that controls a particular hereditary trait.

Pairs of alleles are separated during meiosis.

Law of independent Assortment.

Alleles located on separate chromosomes or far apart on the same chromosome separate independently of one another during meiosis.

Monohybrid cross. Give example.

A cross between individuals that involves one pair of contrasting traits. EX: Bb x Bb

Explain how you might go about determining the genotype of a purple-flowering pea plant.

First, cross the purple-flowering pea plant with a white-flowering pea plant. If the offspring produced by the cross include white-flowering pea plants, chances are that the plant in question is heterozygous for flower color.

What is the equation used to determine probability?

number of times an event is expected to happen

In what ways can probability be expressed?

Percentage; fraction; ratio; decimal

Explain how you would use a Punnett square to predict the probable outcome of a monohybrid cross.

On the left side of square you put the letters for one organism to show if it was hom dominant/recessive or het;on top of square put same for other organism; then match up letters in boxes inside square-determine possible genotype of offspring

Dihybrid cross. Give example.

A cross between individuals that involves two pairs of contrasting traits. EX: RRYY x rryy

How might Mendel's conclusions have differed if he had studied two traits determined by alleles carried on the same chromosome?

Mendel would not have observed independent assortment occurring for all traits, so he probably would not have formulated his hypothesis of independent assortment.

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CH.9 Sec.1 & 2

Question	Answer
List the steps involved in Mendel's experiments on the garden peas.	Mendel first produced pure strains of plants by allowing the plants to self-pollinate over several generations. He then crossed plants that were pure for two contrasting traits. He the allowed the F1 generation plants to self-pollinate.
Dominant.	A trait controlled by a dominant allele masks the effects of other alleles for the same characteristic.
Recessive.	A trait controlled by a recessive allele has no observable effect on an organism's appearance when it is paired with a trait controlled by a dominant allele.
Genes.	A segment of DNA on a chromosome that controls a particular hereditary trait.
Alleles.	An alternative form of a gene.
Law of Segregation.	Pairs of alleles are separated during meiosis.
Law of independent Assortment.	Alleles located on separate chromosomes or far apart on the same chromosome separate independently of one another during meiosis.
Monohybrid cross. Give example.	A cross between individuals that involves one pair of contrasting traits. EX: Bb x Bb
Explain how you might go about determining the genotype of a purple-flowering pea plant.	First, cross the purple-flowering pea plant with a white-flowering pea plant. If the offspring produced by the cross include white-flowering pea plants, chances are that the plant in question is heterozygous for flower color.
What is the equation used to determine probability?	number of times an event is expected to happen
In what ways can probability be expressed?	Percentage; fraction; ratio; decimal
If you were to cross pink-flowering four o'clocks with white-flowering four o'clocks, what results would you expect?	1/2 Pink; 1/2 White
Explain how you would use a Punnett square to predict the probable outcome of a monohybrid cross.	On the left side of square you put the letters for one organism to show if it was hom dominant/recessive or het;on top of square put same for other organism; then match up letters in boxes inside square-determine possible genotype of offspring
Dihybrid cross. Give example.	A cross between individuals that involves two pairs of contrasting traits. EX: RRYY x rryy
How might Mendel's conclusions have differed if he had studied two traits determined by alleles carried on the same chromosome?	Mendel would not have observed independent assortment occurring for all traits, so he probably would not have formulated his hypothesis of independent assortment.

Created by: bio-williamson

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