Answer:
The phenotypic ratio will be 3:1
Explanation:
As per this question there are two phenotypes for seed color, yellow and green. Both the parents are true breeding that means they are homozygous for this trait. Also, all the F1 plants have yellow seed color which clearly indicates that yellow seed color is a dominant trait while green is recessive trait.
The cross of true breeding plants as mentioned above is depicted as under:
Parents YY x yy
/ \ / \
F1 generation Yy Yy Yy Yy
So, as per the law of dominance because of the presence of Y allele, all these progeny will be yellow in color.
Next, when these F1 plants will be crossed, the result will be as under:
F1 generation Yy x Yy
/ \ / \
F2 generation YY Yy Yy yy
The genotypic ratio of F2 generation is 1:2:1
The phenotypic ratio of F2 generation is 3:1
It simply means that in F2 generation, 3 progeny which have allelic combination YY & Yy will be yellow colored while 1 progeny which has allelic combination yy will have green color.
Knowledge is very important for us for better understanding, for easy study.
<h3>
What is a body of knowledge that explains the natural world?</h3>
Science is an organized way of using evidence to learn about the natural world. The world science also refers to the body of knowledge that scientists have built up after years of using this process. It is the science with the help of which we can study the nature deeply without and difficulties. It is the science which make the things very easy for us and make for us very easy to be studied. Without the knowledge we can't able to understand the world in a quite easy manner.
So we can conclude that: Knowledge is very important for us for better understanding, for easy study.
Learn more about Natural World here: brainly.com/question/13142293
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It represents the history of time which ends up being divided on the basis of the earth's biotic composition
Answer:
A. Urinary system its the one system that holds waste
Explanation: