Depends on the genetic make up of the parent organisms.
for example: Aa x Bb yeilds->
AB, Ab, aB, & ab
Just draw a punnet square and solve that way
Random assortment & crossing-over
It allows variation in the produced offspring as genes from both parents are present in the organism.
Crossing over when pieces of homologous chromosomes are exchanged
yes crossing-over occurs in meiosis also known as genetic drifting
Crossing over occurs during Prophase I.
Before crossing over, interphase I takes place. Crossing over occurs during prophase I. Metaphase I occurs after prophase I.
During meiosis, genetic recombination of homologous chromosomes occurs. So meiosis does result in genetic variation. After prophase I, during which crossing over occurs, every chromosome will have some maternal DNA and some paternal DNA.
Variations occurs in species due to the process of "Crossing over"
The genes are different because crossing over causes some of the genes on the homologous pair to shuffle, creating variation.
Increasing variation
During meiosis, permutation.
No