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AaBbCcDdEe x AaBbCcDdEe. What is the probability that the this cross will produce an organism homozygous recessive for all 5 traits?
Wiki User
∙ 13y ago
Each set of genes is an independent event. Each probability of aa, bb, etc. is 1/4. So the probability of aabbccddee is (1/4)5 = 1/1024
Wiki User
∙ 13y ago
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What is the difference between a herezygous and a homozygous?
"Heterozygous" and "homozygous" are terms that refer to alleles, which, in genetics determine what trait, from which parent, will appear in the offspring. Alleles can be either Dominant or Recessive. Every organism has two alleles, which can both be dominant, both recessive, or one of each.So,If an organism heterozygous, it has one recessive and one dominant allele.If an organism is homozygous then both of its alleles are the same; you need to specify if they are homozygous recessive (both alleles are recessive) or homozygous dominant (both alleles are dominant).
What is recessive gene and dominant gene?
A dominant gene is always expressed if present, and the recessive gene is only expressed with the homozygous recessive genotype. For example, if the dominant gene is red (represented by the letter R) and the recessive gene is white (represented by the letter r), then a homozygous dominant organism's genotype will be RR, and its phenotype will be red. If the organism is homozygous recessive, then the genotype will be rr and the phenotype will be white. If the organism is heterozygous, then the genotype will be Rr, and the organism will be red.
What do you call an organism with two dominant or two recessive gene's for a single trait?
Homozygous.
How is the combination of genes important in determining the inheritance of biological traits?
The genes an organism contains is called the organism's genotype.
Are organisms with alleles BB recessive or dominant?
An organism with the alleles BB would be homozygous dominant.
What is the difference between a herezygous and a homozygous?
"Heterozygous" and "homozygous" are terms that refer to alleles, which, in genetics determine what trait, from which parent, will appear in the offspring. Alleles can be either Dominant or Recessive. Every organism has two alleles, which can both be dominant, both recessive, or one of each.So,If an organism heterozygous, it has one recessive and one dominant allele.If an organism is homozygous then both of its alleles are the same; you need to specify if they are homozygous recessive (both alleles are recessive) or homozygous dominant (both alleles are dominant).
What is recessive gene and dominant gene?
A dominant gene is always expressed if present, and the recessive gene is only expressed with the homozygous recessive genotype. For example, if the dominant gene is red (represented by the letter R) and the recessive gene is white (represented by the letter r), then a homozygous dominant organism's genotype will be RR, and its phenotype will be red. If the organism is homozygous recessive, then the genotype will be rr and the phenotype will be white. If the organism is heterozygous, then the genotype will be Rr, and the organism will be red.
To perform a testcross scientists cross an organism with an unknown genotype with what kind of organism?
homozygous recessive
What is a testcross?
Gregor Mendel devised the fundamental tool of the test cross. It is an experimental cross of an individual organism of dominant phenotype but unknown genotype and an organism with a homozygous recessive genotype .
What is it when you have a gene pair that consist of two dominate alleles and two recessive alleles?
The name of the gene pair that consists of a dominant and recessive allele, i.e. (Xx) will be a heterozygous allele. In this situation, the characteristics of the dominant characteristic will mask that of the recessive allele. People have have a heterozygous genotype may be carriers for diseases that reside on the recessive allele.
What do you call an organism with two dominant or two recessive gene's for a single trait?
Homozygous.
How is the combination of genes important in determining the inheritance of biological traits?
The genes an organism contains is called the organism's genotype.
In a testcross an organism with a dominant phenotype but unknown genotype is crossed with what to establish its genotype?
homozygous recessive
Are organisms with alleles BB recessive or dominant?
An organism with the alleles BB would be homozygous dominant.
Is an organism that is homozygous for many recessive traits at a disadvantage?
It depends on the trait. A dominate trait is not always an advantage, and a recessive trait is not always at a disadvantage.
What is the term used to refer to an organism that has two indentical alleles for the particular trait?
The term used to refer to an organism that has two indentical alleles for the particular trait is homozygous. A trait could be homozygous dominant (TT), homozygous recessive (tt), or homozygous for incomplete dominance (rr).
What alleles would a homozygous recessive organism have?
2 lowercase letters Ex. cc or tt or AA
