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anyanavicka [17]
3 years ago
15

he diagram illustrates one method of genetic recombination. Which method of genetic recombination is illustrated in the diagram?

crossing over independent assortment fertilization tetrad formation
Biology
2 answers:
Soloha48 [4]3 years ago
8 0

It would be helpful if you had the diagram but I believe the answer is A. crossing over

Verdich [7]3 years ago
6 0

Answer:

A. crossing over :)

Explanation:

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Describe how building a dam for electricity affects an ecosystem.
tankabanditka [31]

Answer:

The alteration of a river's flow and sediment transport downstream of a dam often causes the greatest sustained environmental impacts. Life in and around a river evolves and is conditioned on the timing and quantities of river flow. A dam also holds back sediments that would naturally replenish downstream ecosystems.

<em>Hope it helps</em>

<em>:D</em>

8 0
3 years ago
A person does not use chronology in day to day life. <br><br><br> true or false
ycow [4]
False- people do use chronology in day to day life
6 0
3 years ago
What three processes lead to variation among offspring that have the same two parents?
beks73 [17]

Explanation:

Genetic variation in offspring during sexual reproduction is caused by

  • crossing over
  • independent assortment
  • randomized fertilization

Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. To produce daughter cells during cell division, the chromosomes (total number of chromosomes (2n)) are copied before the cell splits into two daughter cells. This process is known as mitosis, and occurs in cell division and growth processes. Two new nuclei are formed, along with identical cells. These are the same as the parent cell and the chromosome number (2n) is maintained.

Conversely in meiosis, the number of chromosomes (2n) is halved through meiotic divisions, producing 4 (n) germ cells (sperm or eggs), each containing half the number of chromosomes as its parent cell.

  • crossing over:  the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined.
  • independent assortment in metaphase I of meiosis: chromosomes align independently and genes segregate independently into new combinations ...in humans 2n, n = 23, 8 million combinations of chromosomes possible
  • randomized fertilization: sperm cells fertilize an ovum to form a zygote. This occurs randomly by chance, to result in a complete set of chromosomes 2n, that is a novel combination of half each parent's number of chromosomes

Learn more about mitosis at brainly.com/question/4303192

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly

9 0
3 years ago
If your gloves come in contact with a chemical reagent you should
Fantom [35]
If your gloves come in contact with a chemical reagent, remove them, wash your hands, and get a new pair immediately.
5 0
3 years ago
How many cycles of oscillation does the radiation from a cesium-133 atom complete during one mosquito wing beat?.
kondaur [170]

The frequency of radiation from a Cesium-133 atom is 9,192,631,770 cycle/s

= 9.192631770×10^{9} cycles/s

The number of cycles of radiation in one second is 9.192631770×10^{9}

The number of cycles during 1 mosquito wing beat,

i.e., the number of cycles in \frac{1}{605} s

= (9.192631770×10^{9})(\frac{1}{605} )

= 1.519×10^{7} cycles/beat

Learn more about radiation

brainly.com/question/24469662

#SPJ4

7 0
2 years ago
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