# CHE201 PAST PAPERS

### CHE201 PAST PAPERS

CHE201 PAST PAPERS

Possibility
an event that can occur in two or more different ways
The sum of the individual probabilities of those methods. Like this
Probability of an F2 plant becoming heterozygous
equal to the sum of the probabilities of the two methods
Forming heterozygous:

1⁄4 + 1⁄4 = 1⁄2 . ang
Therefore 1⁄4 SS of the three gene types: 1⁄2 . is expected to have a ratio of
SS: 1⁄4 SS – hence a 1:2:1 ratio of gene types and 3:1
The proportion of phenotypes found in Figure 10.4.
Hybrid Cross.

if f
1 plant for two with variety
independent self-writing characters, resulting in F2
Plants express four different phenotypes.

Ratio
These phenotypes are likely easily determined by
Let’s see how it works for computational testing.

Using the principle described above, we can calculate
The probability of getting an F2 seed ball is 3⁄4: The
Possibility of SS Heterocycline (1⁄2)
A SS homozygous (1⁄4) = 3⁄4.

For the same reason, the probability that a seed is yellow is 3⁄4. two employees
are determined by individual genes and are independent
each, so that the combined probability that a seed is a
Round and yellow 3⁄4 × 3⁄4 = 9⁄16.