Answer:
The pedigree chart are used to check the mode of inheritance of certain trait.
Explanation:
The pedigree is used to know the probability of the offspring getting a particular disorder or condition. It also help to discover the location of the defected gene. And through it can also be predicted that weather it will be a dominant or a recessive trait. For this pedigree data of several generations are required. Here, the phenotype ratios of the offspring can be accurately determined only when the genotypes of the parents are known.
usually this is the measuring device of amount of rain fall.
you can buy these, but most of the time meteorologists will have these to measure the amount of rain fall
Plants have a cell wall and chloroplasts; animal cells do not have either
Hope this helps : )
Numerous barriers can prevent sperm from reaching and fertilizing the egg, this can be that the Sperm may be defected, or lack the required number of mitochondria needed to help move the sperm. Also, if sperm had already fertilized the egg, there is a change that takes place to the membrane surrounding the egg preventing further sperm from fertilizing.
H20 can exist on Earth as ice, water and steam (solid, liquid and gas)
