What are phenotypical & genotypical proportions in f1 & f2, Biology

Assignment Help:

According to the Mendel's second law, in the crossing between homozygous individuals concerning two pairs of nonlinked alleles, AABB x aaBB, what are the phenotypical and genotypical proportions in F1 and F2?

The Parental genotypes: AABB, aaBB. Gametes from parental generation: Ab and aB. Therefore F1 will present 100% AaBb gametes (and the phenotypical correspondent form). Because F1 are AaBb individuals the gametes from their crossing can be: AB, Ab, aB and ab. The casual combination of these gametes forms the following genotypical forms: one AABB, two AABb, two AaBb, four AaBB, one Aabb, one Aabb, one aaBB, two aaBb and two aabb. The phenotypical proportion then would be: nine A_B_ (double dominant); three A_bb (dominant for the first pair, recessive for the second); three aaB_ (recessive for the first pair, dominant for the second); one aabb (double recessive).

 


Related Discussions:- What are phenotypical & genotypical proportions in f1 & f2

How membrane maintained impermeability to potassium, How membrane maintaine...

How membrane maintained impermeability to potassium At 1 AM, an impermeable membrane divides a 1 liter solution of 1M NaCl in the left compartment from a 1 liter solution havin

Show the physical criteria of quality for honey, Q. Show the Physical crite...

Q. Show the Physical criteria of quality for Honey? Colour, crystallization, pH, acidity, water content are some of the criteria used for analysis of honey. These criteria are

Retain the tooth there are two ways-endodontics principles, Once the decisi...

Once the decision has been made to retain the tooth there are two ways for ttt: •     Non surgical retreatment :             -  guided access to apex via coronal access

What are the body fat measurements, What are the Body Fat Measurements? ...

What are the Body Fat Measurements? Obesity is best classified in adults based on Body Mass Index (BMI) classification. BMI, you already know, is a measure of body jut based on

Describe class echinoidea in animal kingdom, Describe Class Echinoidea in a...

Describe Class Echinoidea in animal kingdom? Sand dollars and sea urchins either have flattened disc-like bodies, or are somewhat spherical. While they lack the typical five-ar

ANIMAL KINGDOM , CLASSIFICATION OF PHYLUM PLATYHELMINTHES..

CLASSIFICATION OF PHYLUM PLATYHELMINTHES..

Invertebrate, #question what is the diff, urogenital system of the inverteb...

#question what is the diff, urogenital system of the invertebrae animal?

Illustrate oil-bearing materials, Illustrate oil-bearing materials Oil...

Illustrate oil-bearing materials Oil contents for vegetable oil-bearing materials vary between 18% and 68% of the total weight of the seed, nut, kernel or fruit as indicated i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd