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True [87]
3 years ago
15

What is the main difference between purines and pyrimidines?

Biology
1 answer:
zubka84 [21]3 years ago
6 0
Purines are two ringed structures
pyrimidines are single ringed structures
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Glaciers act as<br> in the water cycle, because they<br> can store water for long periods of time.
frosja888 [35]

Answer:

Reservoirs

Explanation:

Glaciers serve as reservoirs in the water cycle since they can store water for long periods of time. A biogeochemical or nutrient cycle is composed of

  1. reservoirs, in which the biogeochemical or nutrient is stored, and
  2. the several processes by which the biogeochemical or nutrient is cycled between its reservoirs.
5 0
2 years ago
A maize plant with genotype Aa Bb produces the following gametes 100 Ab 45 AB 106 aB 50 ab This tells us that the two genes are
bogdanovich [222]

Answer:

True

Explanation:

The linkage relation of two genes can be determined on the basis of calculating recombination frequency.

If the recombination frequency value is greater than 50% then the genes are not linked and if the value is less than 50% then the genes are linked.

In the given question, the  crossover gametes formed will be Ab = 100

and aB= 106.

Therefore,

\dfrac{recombinant\ progenies}{ Total\ progeny}\times 100\\\\\dfrac{100 +106}{100+106+45+50}\times 100\\\\=\dfrac{206}{301}\times 100\\\\= 68.43\%

Since the recombinant frequency value is larger than 50% therefore the genes do not show linkage.

Thus, True is the correct answer.

7 0
3 years ago
A group of scientists is studying a protist species.
MatroZZZ [7]

Answer:

Do further testing on the species to discover whether  or not the species is related.

Explanation:

7 0
3 years ago
Through facilitated diffusion where will glucose be moving in greater quantities? Inside or outside the cell?
Helga [31]
Inside the cell!!!!!!!!!!!
8 0
3 years ago
Jordan builds a terrarium. But, the soil he uses does not have many nutrients. How could this affect life in the terrarium?
vitfil [10]
The answer is C because plants and animals need nutrients to life
3 0
3 years ago
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