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Aloiza [94]
2 years ago
15

Can you guys help me??? Why does dna polymerase can't synthesize the ends of linear dna?

Biology
1 answer:
Lunna [17]2 years ago
3 0

Answer:

DNA pol uses the energy provided by hydrolysis of the high-energy phosphate bond at the 5' end of the incoming nucleotide to add it to the 3' end of the growing DNA.Without the high-energy phosphate bond, the correct nucleotide can not be added.

Explanation:

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An example of a complete plant protein that provides the necessary ratios of all the
Dmitry_Shevchenko [17]

Answer:

Soybeans are considered a whole source of protein.

Explanation:

This means that they provide the body with all the essential amino acids it needs.

6 0
2 years ago
Question 1(Multiple Choice Worth 3 points)
shepuryov [24]

Answer:

1. It involves multiple trials

2. 2 red: 2 white

3. Process 1 describes cloning and process 2 describes artificial selection

4. Furry Feet

5. Large scale insulin could be produced in relatively lesser time

6. A lowercase letter

7. 0%

8. rr

9. 50%

10. The allele for white flowers is recessive in the pea plant

Explanation:

1. Repetition, this means to do over and over. This would involve multiple trials and this is done to test the reliability of the results and determine if the hypothesis holds true or not.

2. If you put your cross in a Punnett square it would look like this:

      R    r                            

r     Rr   rr                          

r     Rr   rr

Based on your problem: R = red; r = white

If the genotype would have a dominant allele (R), then the dominant trait will come out, if it has only recessive alleles (r) then the recessive trait will come out. So as you can see there are 2 red and 2 white. So the ratio would be 2:2 or 1:1.

3. Process 1 is considered as cloning, and to be more specific, reproductive cloning. The aim of this is to produce an offspring that has the same genetic make up as the original or parent organism. Process 2 is an example of artificial selection. This is also known as selective breeding where breeders choose certain traits to pass on to the off springs by selecting the organisms that have the traits desired.

4. Furry feet of polar bears provide them extra traction when they walk on snow. The fur also provides extra warmth. They also have foot pads on the soles of their feet that help them as well. Together, polar bear have something that works like snow boots.

5. Large-scale insulin could be produced in relatively lesser time because bacteria reproduce through asexual means. They produce copies of themselves that are genetically identical. An advantage of asexual reproduction is the process occurs in a much faster rate. With that said, insulin supply would increase, which will help many diabetic patients.

6. Recessive alleles in a genotype are represented by a lowercase letter. On the other hand, dominant alleles are represented by a capital letter. Squares and circles are used in pedigree charts to represent the whole genotype of an organism for a specific trait.

7. The answer would be 0% because cystic fibrosis is a RECESSIVE gene disorder. For it to be expressed or observable in an individual , t<u>hey should have two recessive alleles</u>. As you can see in the end result, none of the offsprings have 2 recessive alleles. The genotype Aa, has a recessive allele, but it will not be expressed because the dominant trait will mask it.

8. When we talk about homozygous, this means the alleles are the same. And when you say heterozygous, this means that the organism would have a dominant and recessive allele. the recessive llele is represented by a lowercase letter. So if the organism is homozygous recessive, the genotype would have two lowercase letters. (rr)

9. The scenario shows the genotype is pp. This means that the pea plant is homozygous recessive. As explained before, recessive traits are represented by lowercase letters. So this would mean that the white color is a recessive trait. The answer would then be the allele for white flowers is recessive in the pea plant.

10. Mitosis and meiosis are both forms of cell division. Mitosis produces daughter cells that are exactly the same as the parent cell, while Meiosis produces daughter cells that are different. They produce what we call haploid cells, which has only half the chromosomes of the parent cell. Gametes or sex cells are produced through meiosis, while body cells are produced through mitosis.

6 0
3 years ago
Read 2 more answers
What are the answers to 3 and 4
konstantin123 [22]
3. is Phytoplankton  
4. Plankton produce their own food thru photosynthesis or lassoing energy
Hit me up with the Like Love :)
3 0
2 years ago
How are permineralized fossils formed
matrenka [14]
Process. Permineralization is a type of fossilization involving deposits of minerals within the cells of organisms. Water from the ground, lakes, or oceans seeps into the pores of organic tissue and forms a crystal cast with deposited minerals. Crystals begin to form in the porous cell walls.
3 0
3 years ago
PLEASE HELP ME!!!!!!!!!!
Lina20 [59]
Co2 diffuses into red blood cells down their concentration gradient. Here, the co2 reacts with water in the cytoplasm of the red blood cell with the help of the enzyme carbonic anhydrase to make carbonic acid (H2CO3). The carbonic acid then dissociates into H+ and hydrogen carbonate ions. The H+ ions binds with R-groups in haemoglobin in the red blood cell to make the compound carbaminohaemoglobin. The hydrogen carbonate ions leave the red blood cell and diffuse into the blood plasma whilst chloride ions move into the red blood cell (chloride shift) to maintain electrochemical balance.

Ik it's a lot but I hope it helped. I have a biology exam tomorrow and I also need to remember this haha
6 0
3 years ago
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