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kotykmax [81]
3 years ago
9

What must happen before meoisis can begin

Biology
2 answers:
kotegsom [21]3 years ago
8 0

Answer:

Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied.

almond37 [142]3 years ago
7 0

Answer:

Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied. Previous to replication, a germ cell contains two copies of each chromosome, a maternal copy, and a paternal copy. ... DNA replication occurs in the same fashion as it does during mitosis.

Explanation:

Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied. Previous to replication, a germ cell contains two copies of each chromosome, a maternal copy, and a paternal copy. ... DNA replication occurs in the same fashion as it does during mitosis.

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What are the limitations of using fossil in evolution theory. Please answer​
Lapatulllka [165]
The limitations of using fossil in evolution theory are that fossils are rare and only show changes in bones of animals. In many environments the preservation of fossils is hard creating gaps in fossil records that can make identifying change very hard. And when changes present themselves they can be in many forms, such as changing in the soft tissue, coverage and thickness of hair, and changes in organs, all of which can not be preserved by fossilization.

I’m not sure what kind of answer you need but I hope this is sufficient. Hope this helps. Stay healthy and stay safe! :)
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2 years ago
An RNA molecule folds back upon itself to form a "hairpin" structure held together by a region of base pairing. One segment of t
Airida [17]

Answer:

<h2>5'-UCAAUGC-3'</h2>

Explanation:

According to base pairing rule of DNA and RNA, A is always pairs with T ( in case of DNA) or with U ( in case of RNA) with two hydrogen bonds(A=T), and C is always pairs with G in both DNA and RNA  with three hydrogen bonds ( C≡G).

As given here, one segment of RNA molecule containing sequence 5'-GCAUUGA-3', so as the rule, G always binds with C and so on, so the sequence of the binding segment would be 3'-CGUAACU-5'. it can be written as 5'-UCAAUGC-3'

4 0
3 years ago
The Caribbean monk seal was declared extinct in 2008. Although there are other types of seals on Earth, Caribbean monk seals cou
Hatshy [7]
<span>Every day, somewhere in our planet, a unique species of organism becomes extinct as the las member of that species dies. Some examples of this are the Caribbean Monk Seal, Tasmanian Tiger, Quagga, Passenger Pigeon, and the Baiji River Dolphin.

The answer is: <span>Its species.
</span>
I hope it helps, Regards.</span>
7 0
3 years ago
Read 2 more answers
Calculate the percentage ionization in these amino acid side chains at the ph values specified:
Margarita [4]

The <u>Henderson-Hasselbalch equation</u> and pKa can be used to determine the % ionization if it is assumed that the amino and carboxyl groups are not preventing ionization.

  1. aspartate at ph 5.4 = 98.3%
  2. glutamate at ph 11.8 = 100%
  3. histidine at ph 8.0 = 99%

Henderson-Hasselbalch equation- Henderson-Hasselbalch Equation to determine the pH of a solution. Knowing the pH of a solution is particularly significant for many chemical processes as well as for biological systems. The estimated pH value of a buffer solution may be determined using the Henderson-Hasselbalch equation.

pH- A solution's acidity or alkalinity may be determined based on the concentration of hydrogen ions in the solution, or pH. Typically, the pH scale runs from 0 to 14.

To know more about the Henderson-Hasselbalch equation, click on the below link,

brainly.com/question/13423434

#SPJ4

7 0
2 years ago
What are 3 taxanomical domains
Verdich [7]

Answer:

the Archaea, the Bacteria, and the Eukarya.

Explanation:

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3 years ago
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