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Chemistry, 29.01.2020 17:00 janilaw1

Needed 20points i have alot of questions of patterns of inheritance
i need to get these right
1) a pea plant with round seeds (rr) is crossbred with another pea plant with wrinkled seeds (rr). what is the probability of producing offspring with genotype rr?

25%
50%
75%
100%

2)what does a completely filled circle represent on a pedigree chart?

a female carrier of a disease
a male carrier of a disease
a female with a disease
a male with a disease

3) in pea plants, the gene for the color of the seed has two alleles. in the following punnett square shown below, the dominant allele (y) represents yellow and the recessive allele (y) represents green.

punnett square showing a grid that is blank with 4 empty boxes, two columns and two rows. the female parent plant across the horizontal side, top, of the grid indicates a yellow phenotype and a genotype of yy. the male parent plant along the vertical side of the grid indicates a yellow phenotype and a genotype of yy.

based on the punnett square, what percentage of offspring would be expected to have green seeds?

0%
25%
50%
100%

4) sickle cell anemia is known to run in a family. a pedigree chart for this family is shown below.

the parents are shown at the top and from left to right appear as a half-shaded circle labeled 1 next to a half-shaded square labeled 2. the two are connected by a straight line. below the parent pair is a vertical straight line connecting to the next row of circles and squares which are the offspring. starting from left an unshaded square labeled 1, half-shaded circle labeled 2, another half-shaded circle labeled 3, and a completely shaded square are shown labeled 4. all of these are also connected by a horizontal straight line.

what best describes offspring 4?

a female carrier of the disease
a female having the disease
a male carrier of the disease
a male having the disease

5) which of the following statements accurately describes a pedigree chart?

a pedigree chart tracks inherited traits from parents to offspring.
a pedigree chart is used to predict the genotype of offspring.
a pedigree chart predicts the percentage of offspring that will have a specific trait.
a pedigree chart identifies the phenotype of the organism.

a tall pea plant (tt) is crossbred with a short pea plant (tt). the following punnett square shows the separated alleles for two pea plants.

punnett square showing female parent across the top with a phenotype of tall and a genotype of tt and a male parent across the side with a phenotype of short and a genotype of tt. inside the top left box 1 is written, inside the top right box 2 is written, inside the bottom left box 3 is written, inside the bottom right box 4 is written.

which of the following shows the correct match of the box numbers and the genotype of the offspring?

1 = tt; 2 = tt; 3 = tt; 4 = tt
1 = tt; 2 = tt; 3 = tt; 4 = tt
1 = tt; 2 = tt; 3 = tt; 4 = tt
1 = tt; 2 = tt; 3 = tt; 4 = tt

which of the following statements is true?

a pedigree chart tracks inherited traits, and a punnett square is used to predict the genotype of offspring.
a punnett square tracks inherited traits, and a pedigree chart is used to predict the genotype of offspring.
a pedigree chart predicts the percentage of offspring that will have a specific trait, and a punnett square tracks which organisms are carriers for a specific trait.
a punnett square tracks family traits, and a pedigree chart identifies the phenotype of the organism.

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Needed 20points i have alot of questions of patterns of inheritance
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