Answer:
The options to the question are:
A) 1/4
B) 1/5
C) 1/8
D) 1/2
E) 0
The answer is D (1/2)
Explanation:
If each fish can possess only two allele types, a cross between a fish with allele types S1S3 and S2S4 will produce four possible offsprings using a punnet square.
S1S3 will produce S1 and S3 gametes while S2S4 will produce S2 and S4 gametes.
Each allele type confers a particular number of unit color to the fish i.e. S1 confers one unit color, S2 confers two, S3 confers 3, S4 confers 4 and so on........
A cross between S1S3 and S2S4 will yield offsprings S1S2, S1S4, S2S3 and S3S4. Combining these allele types, we will realize that only S1S4 and S2S3 will produce fishes with 5 units respectively. Hence, the probability of producing offsprings with five units of color is 2/4 or 1/2.
Answer:
axon
The axon is a thin fiber that carries signals away from the cell body
Explanation:
A Gram- negative bacteria has a thin cell wall of Peptidoglycan which is sandwiched between the cell membrane and outer membrane. Where as, the Gram positive bacteria has a thick layer of Peptidoglycan outside their cell membrane.
Hence Gram- negative bacteria is different from a Gram- negative bacteria in because it has an extra layer that is outside the Peptidoglycan layer.
Hence the right option is D
This feature of the Gram-negative bacteria does not let crystal violet solution to soak into its Peptidoglycan layer because it is covered by the extra layer where as an Gram- positive bacteria will easy soak into crystal violet solution due to the exposed Peptidoglycan layer.
Well can i see what ur assigment was. then i could better help.
