Copy of CK12 3.2 Mendel's First Set of Experiments and Weblink (2/1/2024) - Elizabeth Stevens | Library

1

What were the first pea plants traits studied by Mendel?

1

What does the 'P' in P generation stand for in Mendel's experiments?

1

What method did Mendel use to cross different pea plants?

1

What were the flower colors Mendel used in his experiments?

1

According to Mendel's experiment, what color were the flowers in the first generation?

1

After self-pollination of the F1 generation plants, what color were some of the F2 generation flowers?

1

What did Mendel assume produces white and purple flowers respectively?

1

What surprised Mendel when he allowed the F1 generation to self-pollinate?

1

Match the generational Mendelian names for his flowers with tradition family structures.

Draggable item		Corresponding Item
F3		Parent
P		Children
F2		Grandchildren
F1		Great Grandchildren

1

What is Mendel's Law of Segregation?

1

Which observation did Mendel make about the 'disappeared' characteristics in the F1 plants?

1

What percentage of traits did Mendel find in the F2 plants for each experiment?

1

According to Mendel's Law of Segregation, what happens to factors during reproduction?

Go To Following webpage to answer questions below. https://www.ndsu.edu/pubweb/~mcclean/plsc431/mendel/mendel1.htm

1

______________   - a population that breeds true for a particular trait.

1

Phenotype - literally means "the form that is shown"; it is the outward, _______  _______  of a particular trait

1

Dominant - the allele that _______  itself at the expense of an _______  allele.

1

Recessive - an allele whose _______  is _______  in the presence of a dominant allele.

1

Allele - one _______ _______ of a given allelic pair; tall and dwarf are the alleles for the height of a pea plant; more than two alleles can exist for any specific gene, but only two of them will be found within any individual.

1

Allelic pair - the combination of _______ _______  which comprise the gene pair

1

Homozygote - an individual which contains only one allele at the allelic pair; for example DD is homozygous _______  and dd is homozygous _______ ; pure lines are homozygous for the gene of interest

1

Heterozygote - an individual which contains one of _______ _______  of the gene pair; for example the Dd heterozygote

1

_______  - the specific allelic combination for a certain gene or set of genes

1

Mendel discovered that the traits we inherit, like eye color or height, are determined by something he called genes. He found that each parent has a pair of genes for each trait in every cell. When two parents have a baby, the baby gets one gene for a trait from each parent. Each gene can be a dominant or a recessive type. When the parents' genes combine to make a baby, they mix together randomly, so it's like flipping a coin to see which gene the baby gets for each trait. How is this concept presented on the webpage: Sequence order below

Gametes unite at random and irrespective of the other gene pairs involved
One member of the gene pair segregates into a gamete, thus each gamete only carries one member of the gene pair.
Each parent has a gene pair in each cell for each trait studied. The F1 from a cross of two pure lines contains one allele for the dominant phenotype and one for the recessive phenotype. These two alleles comprise the gene pair.
The hereditary determinants are of a particulate nature. These determinants are called genes.

1

3

	Phenotype	Genotype	Genetic description
Pure line homozygote recessive
DD
Tall Plant