Table of Contents
- 1 What is the probability that a female of genotype AaBbCc when crossed to a male of AaBbCc will produce an offspring of genotype AaBbCc?
- 2 How many gametes can be produced from AaBbCc?
- 3 What is genotypic ratio of Trihybrid cross?
- 4 What is the frequency of a perfect heterozygous in across between AaBbCc AaBbCc?
- 5 How many types of gametes are found in f1 progeny of cross AABbCC and AABbCC?
- 6 What skin color is AABbCC?
- 7 What is the genotype of the parent with genotype AABBCC?
- 8 What hybrids can be formed from test cross and test cross?
- 9 Can A trihybrid cross be formed between two different parent species?
What is the probability that a female of genotype AaBbCc when crossed to a male of AaBbCc will produce an offspring of genotype AaBbCc?
The probability that AaBbCc x AAbbCc will produce Aabbcc is (1/2)(1/2)(1/4) = 1/16.
How many gametes can be produced from AaBbCc?
four
These types of genotypes that are ABC, ABc, AbC, and Abc will be found in the gametes. Thus the number of gametes produced by the plant having the genotype AABbCc is four.
What is genotypic ratio of Trihybrid cross?
a trihybrid cross yields a phenotypic ratio of 27:9:9:9:3:3:3:1. This reflects the phenotypes generated by the 64 genotypic combinations resulting from 8 different male gametes fertilizing 8 different female gametes.
How many types of genotype arise in F2 generation of Trihybrid cross?
27 different genotypes
For a trihybrid cross, the F2 phenotypic ratio is 27:9:9:9:3:3:3:1. There are 27 different genotypes possible in trihybrid cross, hence, its genotypic ratio is not mentioned.
What is the probability that the progeny of a cross between two individuals that are AaBbCc will have the same genotype as the parents?
Parent 2’s phenotype is first trait dominant, second trait recessive, and third trait dominant. 1664 , or 25\% of their offspring are expected to have the same phenotype as parent 2. Their genotypes are AabbCC and AabbCc .
What is the frequency of a perfect heterozygous in across between AaBbCc AaBbCc?
1/8
Frequency of a perfect heterozygous cross between AABBCC x AaBbCc is. 1/8.
How many types of gametes are found in f1 progeny of cross AABbCC and AABbCC?
Therefore, types of gametes possible is 23=8.
What skin color is AABbCC?
Each dark skin allele (A,B,C) in the genotype adds a small but equal amount of pigment to the skin. There are seven different shades of skin color ranging from very dark (AABBCC) to very light (aabbcc). Most individuals produce a medium amount of melanin and are of intermediate skin color (AaBbCc).
What is the frequency of AaBbCc in Trihybrid test cross?
Genotype AaBbCc can produce 8 types of gametes, i.e., ABC, Abc, ABc, AbC, abc, aBC, aBc and abC. The frequency of production of one of these gametes is 1/8.
What are the gametes in the AABBCC gene?
According to the given question the gametes in the aaBBcc gene is aBc and aBc, and the gametes in AaBbCc will be ABC, Abc, aBC, and abc.For calculating the hybrid ratio using Punnett’s square, a 3-trait square is used with 64 boxes.
What is the genotype of the parent with genotype AABBCC?
The parent with genotype aaBBcc can produce only a single type of gamete; one having the genotype aBc. Clearly the other three alleles in the individual were inherited from the other parent. The genotype of the gamete from the other parent is, thus, AbC. Now, this parent is heterozygous for all three genes.
What hybrids can be formed from test cross and test cross?
Only hybrids that can be formed are Aa Bb Cc and aa BB cc . This is similar to test cross. New quit-smoking discovery has “Big Tobacco” terrified.
Can A trihybrid cross be formed between two different parent species?
Well this can’t be trihybrid cross because the genotype of one parent is not heterozygous . On crossing them we will get a ratio of 1:1 as genotype and phenotype . Only hybrids that can be formed are Aa Bb Cc and aa BB cc . This is similar to test cross.