PATHOLOGY

PATHOLOGY MCQ

GENETICS AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
According to the law of independent assortment, the inheritance of alleles for one trait is not affected by the inheritance of alleles for a different trait. In what case can there be an exception to this rule? (3B3)
A
The genes are on transgenic chromosomes
B
The genes are on homozygous chromosomes
C
The genes are on the same chromosome
D
The genes are on different chromosomes
Explanation: 

Detailed explanation-1: -What is the law of independent assortment? Mendel’s law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene.

Detailed explanation-2: -The Law of Independent Assortment states that during a dihybrid cross (crossing of two pairs of traits), an assortment of each pair of traits is independent of the other. In other words, during gamete formation, one pair of trait segregates from another pair of traits independently.

Detailed explanation-3: -Principle of independent assortment This is because different traits are inherited independently – this is the principle of independent assortment. For example, he cross-bred pea plants with round, yellow seeds and plants with wrinkled, green seeds.

Detailed explanation-4: -The law of segregation states that each individual that is a diploid has a pair of alleles (copy) for a particular trait. Each parent passes an allele at random to their offspring resulting in a diploid organism. The allele that contains the dominant trait determines the phenotype of the offspring.

There is 1 question to complete.