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RoseWind [281]
3 years ago
5

What is the definition of crossing over / recommendation?

Biology
2 answers:
My name is Ann [436]3 years ago
7 0

Answer:

Crossing over is the exchanging of genetic material between two paired chromosomes. Crossing over is a way to recombine the genetic material so that each person (except for identical twins) is genetically unique. It is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical.

Explanation:

We are learning the same things, apparently. I just learned this myself, and am working on it right now.

Anettt [7]3 years ago
4 0

Answer: It is exchanging genetic material between two paired chromosomes

Explanation:

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The higher you go, the lower the air temperature gets

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Which of the following materials is not part of every chemical reaction?
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The correct answer is C. gases.

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In the two-kingdom system, why were fungi classified in the kingdom Plantae?
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3 0
3 years ago
You are conducting a case control study to determine if an association exists between melanoma and indoor tanning. From a statew
Aleksandr-060686 [28]

Answer:

a. Odds ratio = 1.58

b.  Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning

Explanation:

For case  study                                                  

Let 'a'  represent the total population of people with melanomia = 696                                                      

Let 'b' represent the total number of people with melanomia exposed to indoor tanning  =  1107 – 696 = 411 people

For  control study

Let 'c' represent the total population = 1500

Let 'd' represent the total number of people not exposed to indoor tanning = 1500 - (0.428 * 1500)

                                                          =  1500 - 723

Total number of people not exposed to indoor tanning   = 777 people

                                                       

a. Odds ratio = (a/b) / (d/c) = (696/411) / (777/723)

                                                = 1.69 / 1.07 = 1.58

b. Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning.

7 0
3 years ago
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