An allotetraploid plant has its chromosomes derived from two different plants (different chromosomes) and it has 4 chromosomes of each type of chromosome because it received two copies of each chromosome and doubled it. So, this plant, would have 20 chromosomes. (4+6)×2=20
4 -> 2n of one parent
6 -> 2n of the other parent
2 times because it is a "tetraploid" plant and it already has 2 copies of each of its parents chromosomes.
Answer:
Classification
Explanation:
Classification is the grouping of living organisms based on their structural similarities. Those with similar structures are put under one group referred to as a taxon. The grouping also takes into account the evolutionary relationships since all living organisms at one time had a common origin.
Answer:
1. SnapDragon - incomplete dominance
2. Cows/chickens- multiple alleles
3. Blood type in humans - co-dominance
4. Skin and hair color - polygenic inheritance
Explanation:
1. Sometimes, the phenotypic expression of a recessive allele cannot be completely covered by that of the dominant allele. This is called incomplete dominance. Flowers of snapdragon and four'o clock plants are the example of such an event where the recessive allele for flower color, which is white is also expressed in heterozygous plants along with the dominant red color, producing pink flowers.
2. Multiple alleles determine the genetic traits of cows and chickens.
3. There are three alleles in humans that determine the blood type - dominant Ia and Ib for A and B type respectively, and recessive Io for O type. when in a heterozygous person, both dominant alleles are present, both are expressed phenotypically forming AB type blood. this is called Co-dominance.
4. Skin and hair color in humans is determined by multiple alleles present in different chromosomes. this is called polygenic inheritance.
The answer would be 3; theory! hope that helps
They are made up of <span>purines and pyrimidines. hope this helped!</span>
