Genetics question

[meeginvee]

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Hi all,

I am very confused about the difference between the Law of Independent Assortment and the Law of Segregation. Can someone please explain it to me?

Thanks a bunch!

 

[mkhan27]

Independent assortment: one homologous pair separation is not dependent on the another. They are independent of each other. In other words, one cannot be influenced by another homologous pair.

Segregation: each side gets one part of the chromosome. In other words, each chromosome pair(s) migrate to opposite sides to make sure that each gamete has only 1 copy of a chromosome

 

[discensdentibus]

segregation can be proved by a monohybrid cross because it is the segregation of alleles into gametes.

law on ind ass is proved by a dihybrid cross because the segregation of one pair of alleles is independent of the segregation of another pair into gametes given that the two different pairs of alleles are not linked.

Think about having 4 socks. 2 are red. 2 are black. the red socks have a L and a R on them. the black socks have an L and an R on them.
When you get new pairs of socks they are usually attached to a string right? Lets say the 2 pairs of socks are in a bag. You reach into the bag and pull apart both pairs breaking the string connecting the two. You end up with a Red and a black sock in both hands. That is ind ass. Now, whether you have L or R is segregation.

Hopefully that analogy makes sense.

 

[meeginvee]

segregation can be proved by a monohybrid cross because it is the segregation of alleles into gametes.

law on ind ass is proved by a dihybrid cross because the segregation of one pair of alleles is independent of the segregation of another pair into gametes given that the two different pairs of alleles are not linked.

Think about having 4 socks. 2 are red. 2 are black. the red socks have a L and a R on them. the black socks have an L and an R on them.
When you get new pairs of socks they are usually attached to a string right? Lets say the 2 pairs of socks are in a bag. You reach into the bag and pull apart both pairs breaking the string connecting the two. You end up with a Red and a black sock in both hands. That is ind ass. Now, whether you have L or R is segregation.

Hopefully that analogy makes sense.

Thanks this helped!!

 

[meeginvee]

Independent assortment: one homologous pair separation is not dependent on the another. They are independent of each other. In other words, one cannot be influenced by another homologous pair.

Segregation: each side gets one part of the chromosome. In other words, each chromosome pair(s) migrate to opposite sides to make sure that each gamete has only 1 copy of a chromosome

Thanks this helped!!