Table of Contents
- 1 What is homozygous generation?
- 2 Which of the following is an example of a homozygous individual?
- 3 What is F1 generation?
- 4 Is F1 generation homozygous?
- 5 Which Cross will produce only heterozygous offspring?
- 6 What does heterozygous mean in genetics?
- 7 What are the chances of producing homozygous recessive offspring?
- 8 Can a monohybrid cross between two homozygous parents?
What is homozygous generation?
Homozygous is a genetic condition where an individual inherits the same alleles for a particular gene from both parents.
Which of the following is an example of a homozygous individual?
An example of a homozygous individual is Bb. B). A testcross is a mating between an individual with a dominant phenotype (but unknown genotype) and a homozygous recessive individual.
What individuals are homozygous for a characteristic?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.
What is F1 generation?
In basic terminology, the F1 generation is the first generation of offspring produced by a set of parents. The ‘F’ in F1 stands for ‘filial. ‘ So in short, F1 means ‘first filial generation’. F1 Generation Example.
Is F1 generation homozygous?
One parent is homozygous for one allele, and the other parent is homozygous for the other allele. The offspring make up the first filial (F1) generation. Every member of the F1 generation is heterozygous and the phenotype of the F1 generation expresses the dominant trait.
Which is the best example for homozygous?
Homozygous examples You can have brown eyes whether you’re homozygous (two alleles for brown eyes) or heterozygous (one for brown and one for blue). This is unlike the allele for blue eyes, which is recessive. You need two identical blue eye alleles in order to have blue eyes.
Which Cross will produce only heterozygous offspring?
The correct answer is (b) AA x aa. In this case 100% of the offspring will have the genotype Aa (heterozygous) with the dominant allele as the…
What does heterozygous mean in genetics?
The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).
Which is the best description of a homozygous gene?
Homozygous refers to having identical alleles for a single trait. An allele represents one particular form of a gene. Alleles can exist in different forms and diploid organisms typically have two alleles for a given trait. These alleles are inherited from parents during sexual reproduction.
What are the chances of producing homozygous recessive offspring?
Consider a gene with 2 alleles that show complete dominance. When two hertezygotes for this gene breed, they have a 25 percent chance of producing a homozygous recessive offspring. The next time these 2 individuals breed, what are the chances they will once again have a homozygous recessive progeny?
Can a monohybrid cross between two homozygous parents?
A monohybrid cross between a parent that is homozygous dominant and a parent that is homozygous recessive for a particular trait produces offspring that are all heterozygous for that trait. These individuals have two different alleles for that trait.
Is the extra genetic material needed for life?
Therefore, the extra genetic material is probably not material required for life (although it could be important for the organism that contains it). Siamese cats have pale, cream-colored bodies with dark brown fur on their extremities (their ears, face, legs, and tail).