In a cross between AaBBCcDdEeFd and aabbccddeeFF , what is the probability of the offspring resembling the 1st parent phenotypically?
What is the mass of a 257 mL sample of ethanol (ethyl alcohol) at 20 degree centigrade ? The density of ethanol at 20 degree centigrade is 0.789 g/mL?
To determine the probability of the offspring resembling the 1st parent phenotypically, we need to consider the inheritance pattern of each trait. In this case, we have multiple traits represented by different letters.
Let's break down the traits and their inheritance patterns:
Trait A: Dominant (A) and Recessive (a)
Trait B: Dominant (B) and Recessive (b)
Trait C: Dominant (C) and Recessive (c)
Trait D: Dominant (D) and Recessive (d)
Trait E: Dominant (E) and Recessive (e)
Trait F: Dominant (F) and Recessive (f)
In the 1st parent, AaBBCcDdEeFd, the capital letters represent the dominant alleles, while the lower-case letters represent the recessive alleles.
In the 2nd parent, aabbccddeeFF, all the alleles are recessive.
To determine the probability of the offspring resembling the 1st parent phenotypically, we need to examine each trait individually and determine the possible genotypes and phenotypes.
Trait A:
Considering that the 1st parent carries the dominant allele (A) and the 2nd parent carries the recessive allele (a), all the offspring will receive an A allele from the 1st parent. Therefore, all the offspring will resemble the 1st parent for trait A.
Trait B:
Since the 1st parent carries the dominant allele (B) and the 2nd parent carries the recessive allele (b), all the offspring will also receive a B allele from the 1st parent. Thus, all the offspring will resemble the 1st parent for trait B as well.
Similar calculations can be done for each trait:
Trait C: All the offspring will inherit a C allele from the 1st parent, resembling the 1st parent phenotypically.
Trait D: All the offspring will inherit a D allele from the 1st parent, resembling the 1st parent phenotypically.
Trait E: All the offspring will inherit an E allele from the 1st parent, resembling the 1st parent phenotypically.
Trait F: In this case, the 2nd parent carries the dominant allele (F), while the 1st parent carries the recessive allele (f). As a result, all the offspring will inherit an F allele from the 2nd parent, not resembling the 1st parent phenotypically.
Taking all of this into account, the probability of the offspring resembling the 1st parent phenotypically is 100% (or 1).