How does diploidy help to preserve genetic variation? see concept 23.4 (page 498)?

1 answer:

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Monoploid organisms reproduce asexually since they need to transmit all of their genetic material to their offspring. Diploid organisms, have 2 copies of their genetic material that differ slightly in their genes. Since the progeny gets half of the DNA from each parent, we have that new combinations can emerge; for example, if the mother is AA for some allele and the father aa, their offspring will be Aa, a new genotype. This might have different implications (for example, the recessive gene for thalassemia also provides resistance to malaria). Finally, during meiosis, there is also an event called crossover that increases the genetic variation of the offspring.

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Identify which property of water cohesion, adhesion, or heat capacity applies to each observation below.

olga nikolaevna [1]

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Answer: cohesion

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5. The temperature of the water is about 5°C, while the temperature of the air is about 21°C.

Answer: heat capacity

Water has high heat capacity. High heat capacity mean that the water will not be easily become cold or hot. It will need more energy to increase/decrease the temperature of the water. This is why the water could keep its temperature much lower than the atmosphere. This will protect the organism inside the water from an extreme temperature change.

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3 years ago

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Karo-lina-s [1.5K]

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3 years ago

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Vanyuwa [196]

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