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Copy of CK12 3.2 Mendel's First Set of Experiments and Weblink (2/1/2024)

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Last updated about 2 years ago
25 questions
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Question 1
1.

What were the first pea plants traits studied by Mendel?

Question 2
2.

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

Question 3
3.

What method did Mendel use to cross different pea plants?

Question 4
4.

What were the flower colors Mendel used in his experiments?

Question 5
5.

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

Question 6
6.

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

Question 7
7.

What did Mendel assume produces white and purple flowers respectively?

Question 8
8.

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

Question 9
9.

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

Draggable itemarrow_right_altCorresponding Item
F1
arrow_right_alt
Parent
P
arrow_right_alt
Children
F3
arrow_right_alt
Grandchildren
F2
arrow_right_alt
Great Grandchildren
Question 10
10.

What is Mendel's Law of Segregation?

Question 11
11.

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

Question 12
12.

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

Question 13
13.

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
Question 14
14.
______________ - a population that breeds true for a particular trait.
Question 15
15.
Phenotype - literally means "the form that is shown"; it is the outward, _______ _______ of a particular trait
Question 16
16.
Dominant - the allele that _______ itself at the expense of an _______ allele.
Question 17
17.
Recessive - an allele whose _______ is _______ in the presence of a dominant allele.
Question 18
18.
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.
Question 19
19.
Allelic pair - the combination of _______ _______ which comprise the gene pair
Question 20
20.
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
Question 21
21.
Heterozygote - an individual which contains one of _______ _______ of the gene pair; for example the Dd heterozygote
Question 22
22.
_______ - the specific allelic combination for a certain gene or set of genes
Question 23
23.

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

  1. The hereditary determinants are of a particulate nature. These determinants are called genes.
  2. 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.
  3. One member of the gene pair segregates into a gamete, thus each gamete only carries one member of the gene pair.
  4. Gametes unite at random and irrespective of the other gene pairs involved
Question 24
24.

Question 25
25.
Phenotype
Genotype
Genetic description
Pure line homozygote recessive
DD
Tall Plant