1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Phantasy [73]
2 years ago
9

How come we have 20 amino acids and they make thousands of proteins please give me reasons

Biology
1 answer:
Kryger [21]2 years ago
3 0

Answer:

The human body uses just 21 amino acids to make all the proteins it needs to function and grow. Because amino acids can be arranged in many different combinations, it's possible for your body to make thousands of different kinds of proteins from just the same 21 amino acids.

You might be interested in
Why did Holmes say to Watson, “My dear doctor, this is a time for observation, not talk.”?
anzhelika [568]
Holmes said to Watson "My dear doctor, this is a time for observation, not talk, because it was part of his method to observe closely and then to consider his observations. The correct answer is A. 
8 0
3 years ago
Which of the following cell membranes is the most fluid?
Karo-lina-s [1.5K]

Answer:

Membrane B, because it is composed of unsaturated fatty acids that have one or more bends, which prevent tight packing.

8 0
3 years ago
For the BEST preservation of staining properties during long-term storage, tissues should be stored in:_____
kykrilka [37]

Answer:

ice

Explanation:

so it freezes it to preserve it

4 0
3 years ago
What human actions contributed to the nutrient pollution of Lake Okeechobee?
alexdok [17]

Answer:

well i believe its the burning of coal and it releases nutrients

Explanation:

but other then that i dont know  but hope this helps 3 min

7 0
3 years ago
For a series of experiments, a linkage group composed of genes W, X, Y and Z was found to show the following gene combinations.
Gelneren [198K]

Complete question:

For a series of experiments, a linkage group composed of genes W, X, Y and Z was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a gene map. Determine the sequence of genes on the chromosome.

  • w-x = 5
  • w-y = 7
  • w-z = 8
  • x-y = 2
  • x-z = 3
  • y-z = 1

Answer:

The sequence of genes on the chromosome is:

----W-------------------------X-----------Y------------Z---

Explanation:

First, we need to know that 1% of recombination frequency = 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 results in a recombinant one.  

The recombination frequencies between two genes determine their distance in the chromosome, measured in map units. So, if we know the recombination frequencies, we can calculate distances between the four genes in the problem and we can figure the genes order out. This is:

Recombination frequencies:  

1% of recombination frequency = 1 map unit (MU)

  • w-x = 5 MU
  • w-y = 7 MU
  • w-z = 8 MU
  • x-y = 2 MU
  • x-z = 3 MU
  • y-z = 1 MU

Now that we know the distances, we just need to analyze them to find out the correct order of the genes. First, we can look for the biggest distance, which tells us which genes are located in the extremes. w-z distance is the biggest one, so these two genes are in the extremes of the chromosome segment. ---W----------------------------------------------Z---

                     ∫---------------------8 mu-------------------∫

The rest of the genes are located in the middle between these two.

The second biggest distance is between w-y (7 mu). Y is also 1mu distant from Y. 7 mu + 1 mu = 8 mu. So, Y is located closer to Z.

---W-------------------------------------Y------------Z---

    ∫-----------------------7 mu---------∫∫---1 mu--∫

    ∫---------------------8 mu-------------------------∫

w-x = 5 mu, and x-y = 2mu, so x is located between w and y. The sum of these distances equals the distance w-y ( 5 mu + 2 mu = 7 mu). So,

---W-------------------------X----------Y------------Z---

    ∫-----------5 mu -------∫∫--2mu--∫

    ∫-----------------------7 mu---------∫∫---1 mu--∫

    ∫---------------------8 mu-------------------------∫

We know that the distance between x-y equals 2, and the distance between y-z equals 1. Also, the distance between x-z equals. This leads us to assume that Y is located between X and Z.

----W-------------------------X-----------Y------------Z---

    ∫-----------5 mu -------∫∫--2mu--∫∫----1mu---∫

                                     ∫------ 3 mu-----------∫

    ∫-----------------------7 mu---------∫∫---1 mu---∫

    ∫---------------------8 mu--------------------------∫

   

7 0
3 years ago
Other questions:
  • What is meant by the following statement about the cell membrane? The cell membrane is said to be semipermeable.
    7·2 answers
  • Which muscle group works the hardest isometrically when performing a wrist curl in pronated position
    5·1 answer
  • The mass of a book is 150 grams on Earth. what would the mass be on mars?
    9·1 answer
  • A scientist conducted research and plotted his results in the histogram shown below. Which of the following is the best measure
    11·1 answer
  • Anyone know this?? pls help me
    11·1 answer
  • A student is observing an image of an object that could be a comet, meteoroid or asteroid. Which of the following questions
    9·2 answers
  • The arrows in a food chain point from the organism ____________ the energy to the organism ___________ the energy
    11·1 answer
  • Big thanks to anyone that can help with this <3
    11·1 answer
  • I don’t have anything to ask !
    10·2 answers
  • Pulmonary edema and impaired ventilation occur during.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!