Please answer this quickly!
You are trying to re-create Mendel’s pea experiments. Purple flowers are Dominant (P) and White flowers are recessive (p). You bought two Heterozygous Purple Pea plants at a nursery.
1. Please Fill out the Punnett Square Below for crossing two heterozygous Purple Pea Plants. (4 pts. 1 pt. per square)
(Hint: What does the root hetero- mean?)
( There is a square divided into 4 sections )
2. Use the Punnett Square above, answer the following questions:
a. What is the genotype of a White Flower off-spring? (1 pt.)
Answer:_______________
b. What is the ratio of white to purple flowers? (1 pt.)
Answer:_______________
Please answer this and show work please! =)
Answers
1) The word 'hetero' means different.
Heterozygous is a condition in both recessive and dominant trait are present.
Here, two heterozygous pea plants are crossing ( Pp × Pp ).
( Punnett square in the attachment )
2)
a) Here, as the purple is dominant trait,
PP and Pp will have purple colour.
Genotype of white colour flower = pp
b)
Purple flowers - PP and Pp ( 3 )
White flower - pp ( 1 )
Ratio of purple flower to white flower = 3 : 1
Additional information :-
Homozygous : A condition in which the two members of an allelic pair are similar in a diploid organism.
Heterozygous : A condition in which two members of an allelic pair are dissimilar.
Dominant characteristic : Any characteristic that appears in F₁ generation offspring from a cross between parents possessing contrasting characteristics such as tallness and dwarfness.
Recessive characteristic : Any characteristic present in the parental generation that does not appear in F₁ generation but reappears in the F₂ generation.
