<em>B. Has the same allele on both chromosomes in a chromosome pair. </em>
<u>Here is why:</u>
Homozygous means the same, while heterozygous means different. If both of the same alleles are on both chromosomes, then it will be a homozygous.
There can be two types of homozygous alleles.
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<em>Homozygous Dominant</em>: BB
<em>Homozygous Recessive</em>: bb
<u>Notice in both of these they were the same alleles.</u>
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<em>Heterozygous</em>: Bb
<u>Notice how both are different alleles.</u>
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Below I have attached a diagram of a Punnett square I have made.
On the left is a homozygous recessive allele pair.
On the top is a heterozygous allele pair.
Answer:
The most appropriate answer would be B. Have factories recycle water.
Recycling of water refers to the process which processed the waste water and convert it to reusable form.
It can be reused for various purposes:
- Agriculture: irrigating different types of crops, aquaculture etc
- Urban uses such as irrigating golf courses, public parks, private gardens, roadsides, cleaning of roads, systems involved in fire protection, washing of vehicles, toilet flushing, snow-making etc.
- Industrial uses: processes that involve water like cooling towers, washing, dust control etc.
- Environmental uses: It also helps in recharging the surface and ground water, marshes, wetlands, silviculture, wildlife habitat etc.
- Potable: Recharge aquifers ultimately leads to increase in quantity of drinking water.
Hence, having factories which recycle water helps in keeping the freshwater resources renewable.
I would say D. natrural selection
It depends on the period. It could be Catherine the Great.