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In a dyhibrid cross the expected porportion of offspring showing both recessive traits is?
Wiki User
∙ 14y ago
The answer is six.
Wiki User
∙ 14y ago
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Are the offspring in a Punnett square real or expected?
Expected based on probability.
Why does the expected genotype ratio often differ from expected phenotype ratio from a monohybrid cross?
This would be because phenotypes are the observable characteristics whilst genotypes are the actual genes. If we are given the genes: R (dominant) and r (recessive), and 2 organisms with Rr genes (one dominant and one recessive) produce offspring, their offspring will have one of the following genes, with the percentage chance in brackets: RR (25%) Rr (50%) rr (25%) However, you can't detect recessive genes if a dominant gene is present, thus there will be no observable difference between the RR and Rr organism, besides for their offspring. Thus, the phenotype is 75% and 25%, unlike for the genotype.
When traits do not appear according to the expected ratio in offspring what may have occured?
crossing over
The offspring of two parents that are heterozygous for a given trait have a percent chance of being homozygous for that trait?
This would result in 1 heterozygous offspring. You can think of it like this: If the first parent is homozygous it would have AA alleles, the second heterozygous parent would be AB. When they mix genetically it would result in 4 combinations: AA, AA, AA, AB. As there is only one B there can only be one heterozygous offspring. This is not expected it is certain.
If Tall is dominant over short a homozygous dominant man marries a homozygous recessive woman what of their children are expected to be short?
50%
How do you find possible phenotypes of offspring?
Mendel Diagrams. If the offspring gets a dominate gene from both parents, the offspring will exhibit traits from the dominate gene. If the offspring gets a dominate gene from one parent and a recessive gene from another, the offspring will exhibit traits from the dominate gene. If the offspring get a recessive gene from both parents, the offspring will exhibit traits from the recessive gene.
What percentage of the offspring of a normal heterozygous (Dd) dog and a deaf dog (dd) would be expected to have normal hearing?
Fyugugy
Albinism or the lack of color is a recessive trait that is present in some plants Cross two carriers for albinism If 500 plants resulted from the cross what percent of offspring would be expected?
25%
Are the offspring in a Punnett square real or expected?
Expected based on probability.
Two individuals heterozygous for a single trait have children what is the expected phenotypic ratio of the possible offspring?
Let T=trait (dominant) Let t= trait (recessive) Father has Tt and mother also has Tt The possible combinations for offspring are: TT Tt Tt and tt Therefore There is a 3/4 change of the offspring having the dominant trait and a 1/4 Chance of the offspring having the recessive trait It should also be noted that there is a 1/4 chance of the offspring carrying two dominant genes meaning that any of their children will also share the dominant trait
Why does the expected genotype ratio often differ from expected phenotype ratio from a monohybrid cross?
This would be because phenotypes are the observable characteristics whilst genotypes are the actual genes. If we are given the genes: R (dominant) and r (recessive), and 2 organisms with Rr genes (one dominant and one recessive) produce offspring, their offspring will have one of the following genes, with the percentage chance in brackets: RR (25%) Rr (50%) rr (25%) However, you can't detect recessive genes if a dominant gene is present, thus there will be no observable difference between the RR and Rr organism, besides for their offspring. Thus, the phenotype is 75% and 25%, unlike for the genotype.
What can be expected for the recessive trait of monohybrid from the f2 generation?
your mom, your dad
What can be expected for the recessive trait of monohybrids from the F2 generation?
i got the same question on my test its 1/4 recessive :)
How can a lethal gene be passed from one generation to the other?
If the lethal gene is recessive, and the parent carrying it is heterozygous for that gene, it can be passed down to offspring in the recessive form. If the mate of the parent happens to be carrying the same gene heterozygously, 50% of offspring will be expected to inherit the recessive lethal gene heterozygously. 25% of the offspring will be expected to inherit the lethal gene homozygously, leading to death. The remaining 25% of offspring we will expect to homozygously inherit the non-lethal gene. 1:2:1 ratio
What is the expected frequency for a person to have all six recessive characteristic?
0.25
If sixteen offspring are produced in the cross shown how many of the offspring from the cross would be expected to have wrinkled yellow peas?
3
What Percentage Of The Offspring Will Be Expected To Have The TTYy Allele Combination?
50 percent
