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Answer:
By breathing cleaner air you can reduce the risk of stroke, heart disease, lung cancer and respiratory diseases such as asthma.
Explanation:
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Answer:
The correct answer is the opposite of the positive phototropism.
Explanation:
The vines in the tropical rain forests in the given case would primarily exhibit the growth pattern opposite in the direction of positive phototropism. The response of the plant towards the source of light is termed as the positive phototropism. On the other hand, the phenomenon that results in the growth of the plant in the reverse direction is termed as negative phototropism.
Thus, in the given case, in order to reach a large tree, the vines in the tropical rain forests would primarily show a growth movement, which would be the opposite of positive phototropism.
2. Answer: a. Resulting phenotypes: 100% Yellow.
b. No, there are not blue kernels.
c. All kernels are yellow because the yellow allele (Y) is
dominant over blue allele (y).
Explanation: Crosses a (YY x Yy) and b (YY x yy) result in yellow offspring with genotypes: 1) Dominant homozygote (YY) and 2) Heterozygous (Yy).
4. Answer: a. Genotypes: YY (25%) , Yy (50%) and yy (25%).
b. Phenotypes: Yellow (75%) and blue (25%).
c. There are more blue kernels in the F2 than in the F1.
Explanation: Crosses between F1 members (Yy x Yy) result in yellow and blue offspring with genotypes: 1) Dominant homozygote (YY, 25%) 2) Heterozygous (Yy, 50%) and 3) Recessive homozygote (yy, 25%).
5. Answer: a. Ys and YS
b. YS, yS, Ys, ys.
Explanation: The yellow and smooth individuals with genotype (YYSs) can produce two different gametes: Ys (Yellow and wrinkled) and YS (Yellow and smooth). The yellow and smooth individuals with genotype (YySs) can produce four different gametes: YS (yellow ans smooth), yS (Blue and smooth), Ys (Yellow and wrinkled) and ys (Blue and wrinkled).
Equilibrium means D, all of the above