The diseases which can be passes down as genetic traits are known as "Inheritable disease" some examples are:
1) Haemophilia
2) Phenylketonuria
3) Down's Syndrome
4) Turner's Syndrome
5) Klinefelter's Syndrome
Hope this helps!
If your choices are the following:
<span>A. rhizoids
B. sporophylls
C.leaves
D.the waxy cuticle
E. lignified vascular tissue
Then the answer is E.</span>
Answer: The frequency of brown beetles is 0.32.
Explanation: The frequency of A1 allele is 0.8. As p+q=1, or the sum of dominant and recessive frequencies equals 1 or 100%:
1 - 0.8 = 0.2
In Hardy-Weinberg principle,

2pq represents the frequency of heterozygote individuals, so:
genotype A1A2 = 2*0.8*0.2 = 0.32.
Thus, the frequency of brown beetles (A1A2) in the population is 0.32.
I think it is light so B) light