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ohaa [14]
3 years ago
9

A single-celled organism can be classified as a prokaryote based on the absence of-

Biology
2 answers:
Amiraneli [1.4K]3 years ago
6 0

Answer:

A nucleus and membrane bound organelles.

Andru [333]3 years ago
5 0

Answer:

lack of nucleus.

Explanation:

A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.

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A biologist has mixed the polysaccharide agarose with other components to create a gel.
myrzilka [38]

Answer:

a

Explanation:

n.a

6 0
2 years ago
The breaking down of material into smaller parts is known as what?
barxatty [35]
Weathering because it's "wearing" down something to make sediment
4 0
3 years ago
Two autosomal genes, J and K, are 60 map units apart. You perform the following testcross: J K / j k x j k / j k. At what freque
Dmitry [639]

Answer:

  • J K / j k = 20%
  • j k / j k = 20%
  • J k / j k = 30%
  • j K / j k = 30%                

Explanation:

To calculate the recombination frequency, we have to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.

The map unit is the distance between the pair of genes for which every 100 meiotic products, one of them results in a recombinant one.

So, en the exposed example:

  • J and K are autosomal genes
  • J and K are separated by 60 M.U.
  • 60 M.U. means that there is 60% of recombination.

Cross)             J K / j k                    x                  j k / j k

Gametes) JK  Parental                                     jk, jk, jk, jk

                jk   Parental                                  

                Jk   Recombinant                          

                 jK   Recombinant

One map unit equals 1% of recombination frequency. This means that every 100 meiotic products, one of them is a recombinant one.

1 M.U. -------------- 1% recombination

60 M.U. ------------ 60% recombination

                              30% Jk  +  30% jK

100 M.U. - 60 M.U. = 40 M.U.

40M.U.--------------40 % Parental (Not recombinant)

                            20% JK   +   20% jk

Punnet Square)           JK       jk      Jk      jK

                          jk     JK/jk   jk/jk   Jk/jk   jK/jk

J K / j k = 20%

j k / j k = 20%

J k / j k = 30%

j K / j k = 30%                                

3 0
3 years ago
What is the benefit of composting?
andre [41]
Composting is a form of waste that uses organic materials to put into plants in order to help them grow and flourish. It saves energy, and it doesn't give off many gasses to help the Earth. 
However, it is ineffective on the large scale and cannot be mass produced to help Earth instantly because of the large amounts of inorganic materials.

8 0
3 years ago
Describe how ocean temperatures affect the weather.
Kaylis [27]

Answer:

Ocean temperatures can cause large storms such as hurricanes or tropical storms. Warmer ocean waters create larger and stronger storms as well as keep said storms going longer. Warmer ocean waters can also cause the temperature in the immediate air around it to be slightly warmer.

Please give brainliest.

Explanation:

3 0
3 years ago
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