Answer:
1/2
Explanation:
Genotype of the heterozygous mother= X^cX
Genotype of color-blind father= X^cY
A cross between heterozygous mother and color blind father would give progeny in following phenotype ratio=
1 colorblind daughter: 1 colorblind son: 1 carrier but normal daughter: 1 normal son.
Therefore, this couple has 1/2 probability of getting a colorblind daughter is 1/2
Xylem carries water and dissolved nutrients
Answer:
C. But see the answer under C. Apparently C is the accepted answer.
Explanation:
A. Not A.I don't think that's a problem for gulls especially on beaches.
B. Not B. Their feather do not look like they need much help in keeping their feathers attached when in flight.
C. This is not really the answer, but it is the best answer of these 4. The actual answer is that the bones are porous for better air intake which provides more oxygen and hence they are better able to fly.
D. Not D. Food has nothing to do with the problem. Birds get an adequate amount of food without their wings being porous. See the answer for C.
B) the decay of once-living things
Hope this helps have a great day!
