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
oee [108]
3 years ago
6

A biochemist isolates and purifies various molecules needed for DNA replication. When she adds these molecules to DNA, replicati

on occurs, but half of the DNA produced consists of a normal DNA strand paired with numerous segments of DNA a few hundred nucleotides long. What has she probably left out of the mixture
Biology
1 answer:
olga55 [171]3 years ago
3 0

Answer:

DNA ligase

Explanation:

<em>The biochemist must have left out DNA ligase enzyme.</em>

<u>The DNA ligase enzyme is able to catalyze the formation of phosphodiester bonds and as such, capable of joining strands of DNA together to form a single strand.</u>

The numerous DNA segments of a few nucleotides long observed by the biochemist must have been the replicated product of the lagging DNA strand. The lagging strand is replicated discontinuously in short strands because the DNA polymerase enzyme can only elongate primers in 5' to 3' direction. The short segments are known as Okazaki segments and are usually joined together to form a whole strand by the DNA ligase enzyme.

Hence, the missing component is the DNA ligase.

You might be interested in
Which is true regarding the TCA cycle (Krebs cycle)? A. pyruvate is an end product of the cycle B. energy capture in the cycle i
Naily [24]

Answer: D. some components of the cycle are used as building blocks for certain anabolic pathways.

Explanation:

The citric acid cycle or Kreb's cycle is the part of the cellular respiration. It is a sequence of chemical reaction which is used by all the aerobic organisms so as to store energy by the process of acetyl CoA oxidation derived by the process of fats, proteins and carbohydrates into forms like carbon dioxide and adenosine triphosphate (ATP).

The acetyl CoA is used in the process of synthesis of fatty acids. The citrate is used for the synthesis of cholestrol. The oxaloacetate and alpha ketogluterate are used for the synthesis of aminoacids. Succinyl CoA is used for the synthesis of poryphrins and fatty acids.

5 0
3 years ago
Estimating Population Size – Review the two approaches to estimating population size and answer the following questions.
Andre45 [30]

Answer:

b) there are 56 deer in 1000 acres of area.

Explanation:

If a person has 1000 aces of land and a local wildlife biologist tell him that on every 18 acres only one deer is present so in 1000 acres there are 56 deer are present.

calculation;

1 deer ------ 18 acres

x --------- 1000 acres

by cross multiplication, we get

18 x = 1000

both side divided by 18, we get

x = 55.5

by rounding off we get

x = 56

3 0
3 years ago
Explain why flask #2 (yeast with glucose) produced more CO2 than flask #5 (yeast with flour). AND how did you know it produced m
Agata [3.3K]

Answer: Glucose

Explanation:

The carbon dioxide produced in the experiment can be directly related to the energy generated after the fermentation process. The carbon dioxide is the byproduct of the chemical reactions in the ethanolic fermentation. Glucose substrate will yield the highest energy along with the highest producer of the carbon dioxide after the fermentation process conducted by yeast as compared to the fermentation process that was conducted by yeast with flour. The flour will offer a source of carbohydrates including starch and sugars. The yeast will find out sugar in the flour and ferment it. Glucose is readily available sugar for the action of yeast so more production of carbon dioxide is expected from glucose substrate.

6 0
3 years ago
Which process can contribute to increased biomass
natta225 [31]
For plants, it's photosynthesis.
5 0
3 years ago
Which of the following is NOT considered a form of precipitation? *
Daniel [21]

Answer:

Lightning is not considered a form of precipitation but rather a discharge of electricity.

4 0
2 years ago
Other questions:
  • Which of these best represents a fatty acid molecule
    13·1 answer
  • Sickle-cell anemia is a disease that is caused by a change in the gene sequence by _____.
    8·1 answer
  • A cell with 80 chromosomes undergoes mitosis. How many chromosomes are found in the daughter cells? How many daughter cells are
    14·1 answer
  • "the existence of two or more disorders at the same time is called "_____.
    6·1 answer
  • In lemmings, gray (G) fur is dominant over white (g). There is a second gene called color (C), and individuals must have at leas
    12·1 answer
  • You can use light produced by ____ to heat food.
    12·1 answer
  • I don’t understand this. Please help.
    6·1 answer
  • The object whose motion is shown on the following graph is _____. speeding up slowing down standing still holding at a constant
    12·1 answer
  • Which of the following is a concern if you forgot to resuspend (mix) culture solutions when performing serial dilution?
    13·1 answer
  • Can selective breeding be done with other animals? Why or why not?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!