Answer:
17
Explanation:
In corn,
Smooth kernel (S) is dominant to rough kernel (s)
Purple kernel (P) is dominant to yellow kernel (p)
Since no information has been given about the cross here let us assume it to be a standard dihybrid cross.
The phenotypic ratio of dihybrid cross is 9:3:3:1. 9/16 will show dominant phenotype for both traits, 3/16 will show dominant phenotype for one trait, other 3/16 will show dominant phenotype for the second trait, 1/16 will have recessive phenotype for both the traits.
Here,
Purple rough (P_ss) = 52
Yellow smooth (ppS_) = 50
Both of them show dominant phenotype for one trait so they each form 3/16 of the progeny.
If the total progeny was z, 3/16*z = 50
z = (50*16)/3 = 267
Total progeny = 267 kernels
Yellow rough kernels (ppss) = (1/16*267) = 17
So approximately 17 corn kernels will be yellow and rough.
If you had the choice of which to hit ,obviously it would be the haystack. The haystack would have more give and would not have rapid deceleration like hitting a hard object like a telephone pole.
You lose water every day through natural body functions, such as breathing, sweating, and going to the bathroom. Most people easily replace that fluid through drinking and eating. However, certain conditions affect the body’s ability to stay hydrated, requiring a conscious effort to take in more fluids. In fact, waiting to drink until you are thirsty is often not enough because you may be dehydrated and not feel thirsty, which it would cause cancer.
