Answer:
C
Explanation:
The F2 offspring of a cross would follow the ratio of 9:3:3:1 only if the cross is a <u>dihybrid for two unlinked traits</u>.
There is nothing like a monohybrid cross for two traits. A cross involving two traits is a dihybrid cross. Hence, options a and b are out of the equation.
A dihybrid cross for two closely linked traits would produce F2 offspring in another ratio that is different from 9:3:3:1 depending on the linkage map.
<em>Hence, the correct option is</em><em> C</em><em>.</em>
Answer:
The correct answer is A (XRXr, XRXr, XRY, XRY) becouse
R- is about red color
r- is about white color
if we have Rr ( XRXr)- that will be red color
white color is only when is only "r" (XrY) or only "rr" ( XrXr)
Explanation:i put this in the wrong place and im sorry
The Rabbit and Mouse- Have a great day!
The reason why a dichotomous key to identify organism is valuable, is because it helps you classify organisms,it helps you identify eco -systems, it helps you analyze an organism's traits.
Explanation:
A dichotomous key is a skill that has been brought about by scientists, to help people to identify and classify organisms.
In Dichotomous key, the main way of identifying an object is by it scientific name.This is because, though two objects might look similar to each other but they might belong to a whole different species.
So, it is is easier to identify the organism from its scientific name, as it will tell us which species it belongs to.
This key is very useful to people who are novice, and don't know much about identifying an organism.
This key also helps identifying, whether an organism belongs to a particular closely related group of organisms or is a separate organism.
It helps one analyze the traits of an organism, and based on their characteristics, it will help you identify and classify the species of the object or organism.
Species evolve over time based on their environment.
If part of a group of a species gets isolated into a new environment, then both species (the initial environment and the new one) will evolve differently because of their different environments and in result become different.
So since they both evolve differently based on their different surroundings, the group that was isolated becomes a new species.
