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
Andreyy89
3 years ago
8

A biochemist isolated and purified molecules needed for dna replication. Whne she added some dna, replictation occursd but the d

na molecules were defective. Each consisted of a normal dna strand paired with numerous segments of dna a few hundred nucleotides long. What had she probably left out of the mixture?
Biology
1 answer:
liberstina [14]3 years ago
3 0

Answer:

She left Ligase enzyme out of the mixture.

Explanation:

DNA replication is the process of formation of new molecules of DNA from the existing one. This process occurs in semiconservative way i.e each new strand consist of one newly synthesised strand and one old parent strand that act as template for the formation of new strand. replication on one strand occurs continuously from 5 prime to 3 prime but on other strands it occurs discontinuously from 5 prime to 3 prime because DNA polymerase moves only in one direction from 5 prime to 3 prime. Hence in discontinuous strands gaps remained. These gaps are filled by Ligase enzyme.

Requirements for DNA replication:

DNA replications needs

Primers

DNA Polymerase enzyme

DNA helicase enzyme

Single nucleotide binding protein

dNTPs

and Ligase enzyme.

Correct choice:

She left Ligase enzyme out of the mixture.

You might be interested in
Suggest appropriate sources of food to meet their requirements for a Newborn baby and child aged 6.
pashok25 [27]

Explanation:

Calcium . Helps build strong bones and teeth.

Fat. Creates energy, helps the brain develop, keeps skin and hair healthy, and protects against infections.

Folate. Helps cells divide.

Iron. Builds blood cells, and helps the brain develop. Breast-fed babies should receive iron supplements.

Protein and carbohydrates. They provide energy and fuel growth.

Zinc. Helps the cells grow and repair themselves

Your baby also needs vitamins such as:

Vitamin A. Keeps skin, hair, vision, and the immune system healthy.

Vitamin B1 (thiamine). Helps the body turn food into energy.

Vitamin B2 (riboflavin). Helps the body turn food into energy, and protects cells from damage.

Vitamin B3 (niacin). Helps the body turn food into energy and use fats and protein.

Vitamin B6. Keeps the brain and immune system healthy.

Vitamin B12. Keeps nerve and blood cells healthy, and makes DNA -- the genetic material in every cell.

Vitamin C. Protects against infections, builds bones and muscles, and helps wounds heal.

Vitamin D. Helps the body absorb calcium from food, and keeps bones and teeth healthy. Breast-fed babies may need a D supplement.

Vitamin E. Protects cells from damage, and strengthens the immune system.

Vitamin K. Helps the blood to clot.

hope this was helpful

8 0
3 years ago
Read 2 more answers
Injury to cervical vertebra C3-C4 is particularly problematic because ________.
garik1379 [7]

Answer:

C) the phrenic nerve that serves the diaphragm receives its fibers from here

Explanation:

5 0
3 years ago
A student wanted to know which sugar would yield the greatest amount of energy for the cell when metabolized by mitochondria. Th
Naddika [18.5K]

Answer:

A possible hypothesis would be:

IF a yeast cell is supplied with maltose sugar, THEN it would yield the greatest amount of energy when metabolized by bacteria

Explanation:

The hypothesis is a testable explanation aimed at providing a theoretical explanation to a question. The hypothesis is a predictive statement about the possible solution, which can be tested. A hypothesis must be testable via experimentation. It often has an IF, THEN format.

Hence, in the case experiment where a student wanted to know which sugar (maltose, glucose or sucrose) would yield the greatest amount of energy for the cell when metabolized by mitochondria. A possible hypothesis of this experiment will be that: IF a yeast cell is supplied with maltose sugar, THEN it would yield the greatest amount of energy when metabolized by bacteria

Note that, this hypothesis must be testable by conducting an experiment and it doesn't have to be true. It can be disproved or proved by the outcome of the experiment. In this case, the hypothesis is giving an educated guess that maltose is the sugar that will yield the greatest amount of energy for yeast cells

8 0
3 years ago
A liquid's resistance to flow is called<br> viscosity.<br> Odensity<br> O pressure.<br> O tension.
gregori [183]

Answer:

Viscosity

Explanation:

Ive had this question on quizzes many times. And viscosity was the answer.

8 0
3 years ago
Which characteristics of an adolescent must the nurse first consider in order to assist the teenager to deal with diagnosis of t
Volgvan

Need to be like peers is the characteristics of an adolescent must the nurse first consider in order to get assist the teenager to deal with the diagnosis with type 1 diabetes

Diabetes is the chronic (long-lasting) health condition that also affects how your body turns food into the energy. Your body breaks down the most of the food you eat into the sugar (glucose) and also releases it into your bloodstream. When your blood sugar goes up, it signals that your pancreas to release the insulin.

The exact cause of most types of the diabetes is unknown. In all the cases, the sugar builds up in the bloodstream. This is because of the pancreas that doesn't produce that enough insulin. Both type 1 and in type 2 diabetes that may be caused by the combination of the genetic or the environmental factor

To know more about diabetes visit:

brainly.com/question/14823945

#SPJ4

6 0
11 months ago
Other questions:
  • I need help in Biology I can't figure out these activity questions
    6·1 answer
  • One of the problems with the trichromatic theory of color vision is that it cannot explain why negative afterimages (i.e., after
    6·1 answer
  • Most of Australia's population lives in which part of the continent? south west central coastal NextReset
    15·1 answer
  • The table shows the rate of melanoma by gender. mc026-1.jpg Consider the number of males who were diagnosed with melanoma in 200
    7·2 answers
  • Jason adds the antibiotic penicillin to a bacterial culture. The bacteria develop genetic modifications in their genome, which g
    5·2 answers
  • Cartilage is a type of connective tissue that _____.
    12·1 answer
  • name one structure which is typical of many plant cells buy which is not present in the root hair cell.​
    5·2 answers
  • Hey so were doing this weird salt and sugar solutions phet assignment and idk how to do it ​
    9·1 answer
  • Why do we use models in our everyday lives especially for the weather?
    6·1 answer
  • Describe the character of Don Lollo?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!