100% will have that allele. Homozygous means the alleles are the same for every gamete, for example looking at Mendel's pea plants, if the allele for the trait of growing tall is T and the allele for growing short is t, a homozygous tall pea plant would have the genotype TT, meaning all of its alleles are tall
The median is 12.6.
Explanation:
To find the median you list them from greatest to least then whatever number is in the middle is your median.
11.8, 11.9, 11.9, 12.2, 12.3, 12.9, 13.3, 13.4, 13.6, 13.7
So the middle two numbers are 12.9 and 12.3 so you would find the average by adding them together and dividing by 2.
12.3+12.9=25.2
25.2/2=12.6
Drastic change in pH or temperature because the enzyme reaction may become denatured.