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Maslowich
3 years ago
7

Which situation is a result of crossing-over during meiosis?

Biology
1 answer:
gladu [14]3 years ago
5 0

Answer:

C

Explanation: Genes are rearranged due to crossing over and offspring can vary in traits and appearance

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Genetic recombination plays a role in both maintenance and diversity within an organism. Explain how this balance is achieved an
weeeeeb [17]

Answer:

Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.

Explanation:

Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.

The Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one. The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants. After crossing over, homologous chromosomes get separated again.  

On the equatorial plane, homologous paired together, randomly aline with their kinetochores facing opposite poles. The random arrangement of tetrads is different in every cell going through the meiosis process. There is no equal alinement between two cells. When tetrads aline in the equatorial plane, there is no predetermined order for each of the homologous chromosomes of each tetrad to face one of the poles and then migrate to it while separating.  Chromosomes of the homologous pair arrange to face any of the poles to migrate forward to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is also different and depends on the chromosomes that form that cell. The order in the equatorial plane is what introduces variation into the gametes, being almost impossible for two gametes to have the same genetic charge.  

Independent assortment occurs when the alleles from two or more different genes distribute in gametes independently from each other. In other words, a gamete receives an allele from a gene that does not depend on nor influence the allele of another gene in the same gamete. This can only be applied to independent genes. An organism gets only one of the members of the chromatids pair of each parent.  

7 0
2 years ago
How is biodiversity a measure of health?? some one please help me
KIM [24]

Answer:

Biodiversity is a measure that combines richness and evenness across species. It is often measured because high biodiversity is perceived a synonymous with ecosystem health. Diverse communities are believed to have increased stability, increased productivity, and resistance to invasion and other disturbances.Biodiversity gives resilience from the microbes that contribute to the formation of the human biome to the genes that help us adapt to stress in the environmentsupports all forms of livelihoods, may help regulate disease, and is necessary for physical, mental, and spiritual health and social well-being.

8 0
2 years ago
Minch Grinch Company sells 2 cats in a hat to a customer for $10,000, and allows the customer to pay on credit card. The credit
Cerrena [4.2K]

Answer:

Debit to accounts receivable $9,800, Debit to credit card Discount $200 and credit to sales revenue $10,000

Explanation:

Given that the credit card charges 2%; then the discount rate = \frac{2}{100}*10,000

= 0.02 × 10,000

= 200

The account receivable = $10,000 - $200

= $9,800

From the foregoing, it is obvious that the sale revenue would not be affected by this transaction. SO, the sale revenue = $10,000

8 0
3 years ago
Ways of transmission of coronavirus from infected person to others?
Hatshy [7]

Explanation:

We know that the disease is caused by the SARS-CoV-2 virus, which spreads between people in several different ways. The virus can spread from an infected person's mouth or nose in small liquid particles when they cough, sneeze, speak, sing or breathe.

3 0
3 years ago
What does the graph tell us about the humidity in any given location on Earth?
Veseljchak [2.6K]
The best answer would be, 'The warmer the air temperature, the greater the humidity.'

The second choice is true, but the graph is representing humidity, not precipitation. That is off-topic.

C could also be true, but the chart didn't refer to any body of water.

I hope this helped you!

Brainliest answer is always appreciated!
5 0
3 years ago
Read 2 more answers
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