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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 yellow seeds? 0% 25% 50% 100% Question 6(Multiple Choice Worth 3 points) (06.03 LC) A Punnett square is used to _______. predict the genotypic and phenotypic probabilities of possible offspring determine if a trait runs in a family track inherited traits through many generations identify organisms that are carriers of a specific trait Question 7(Multiple Choice Worth 3 points) (06.03 MC) A tall pea plant (Tt) is crossbred with another tall 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 tall 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 = t

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wiseowl2018

Question 1.

Answer:

The correct answer is option D which is 100%.

Explanation:

According to the description of Punnett square given in the question, there will be there will be two types of genotype and one type of phenotype which is yellow.

  • YY, homozygous dominant = Yellow Seeds.
  • Yy, heterozygous = Yellow Seeds
  • So the progeny will be 100% of yellow seeds.

Punnett square is also attached.

Question No.2.

Answer:

The correct answer is the option A which predicts the genotypic and phenotypic probabilities of possible.

Explanation:

Punnett square is a way to determine the probable genotype of expected offspring by the genotypes of father and mother devised by Punnett.

  • In this method, A square shaped table is constructed and the alleles of the gene of father/male are written on the top of tables, on the column.
  • The alleles of the mother are written in horizontal to square, in front of rows.
  • So the genotypes in the square box by multiplying row and column alleles will be expected genotype of an offspring.
  • The example is attached below.

Question no. 3.

Answer:

The correct answer is option C which is  1 = TT; 2 = Tt; 3 = Tt; 4 = tt .

Explanation:

The Punnett square is made by the description given in the question.

There are total 4 boxes. In box number 1 which is on top left genotype is TT and in box 2 which is on top right genotype is Tt. In box 3, the genotype is Tt and in box 4, the genotype is tt.

So according to the given Punnett square information in option C is correct one.


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Ver imagen wiseowl2018
marianaegarciaperedo

1) Option D. 100% of offspring would be expected to have yellow seeds. 2) Option A. Predict the genotypic and phenotypic probabilities of possible offspring. Option C. 1 = TT; 2 = Tt; 3 = Tt; 4 = tt .

Available data

  • the gene for the color of the seed has two alleles
  • the dominant allele (Y) represents yellow
  • the recessive allele (y) represents green

Cross:         Yy   x     YY

Gametes) Y    y      Y   Y

Punnett square)      Y        Y

                     Y      YY       YY

                     y       Yy       Yy

F1) 2/4 = 1/2 =50% of the progeny is expected to be heter0zyg0us for the color trait, Yy

      2/4 = 1/2 =50% of the progeny is expected to be h0m0zyg0us dominant for the color trait, YY

     4/4 = 1 = 100% of the progeny is expected to have yellow seeds.

Option D is correct.

100% of offspring would be expected to have yellow seeds.

What is a Punnett Square?

Punnett square is a cross representation that shows all possible gamete combinations and the probabilities of getting offspring with different genotypes and their consequent phenotypes.

The correct option is A.

A Punnett square is used to  predict the genotypic and phenotypic probabilities of possible offspring  .

Available data

  • Tall is coded by the T dominant allele
  • Short is coded by the t recessive allele
  • Cross: A tall pea plant (Tt)  with a tall pea plant (Tt)

Parentals)     Tt    x     Tt

Gametes)    T    t        T    t

Punnett square)     T       t

                     T       TT     Tt

                     t         Tt      tt

F1)  

  • Genotype

   1/4 = 25% of the progeny is expected to be h0m0zyg0us dominant TT

   2/4 = 50% of the progeny is expected to be heter0zyg0us Tt

  1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive tt.

Genotypic ratio: 1:2:1

 

  •   Phenotype

     3/4 = 75% of the progeny is expected to be tall

     1/4 = 25% of the progeny is expected to be short

Phenotypic ratio: 3:1

Option C is the correct answer.

1 = TT;

2 = Tt;

3 = Tt;

4 = tt .

You can learn more about crosses and punnett square at

https://brainly.com/question/1185199

https://brainly.com/question/232320

https://brainly.com/question/25357981

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