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
Art [367]
3 years ago
6

True or false: In a gel electrophoresis gel, a DNA fragment containing 100 bp (base pairs) would travel faster (and further) tha

n a strand of DNA containing 1000 bp.
Biology
1 answer:
vova2212 [387]3 years ago
3 0

Answer: true

Explanation: In gel electrophoresis, the smaller the size/molecular weight of DNA the faster it moves across the gel and vise versa. This is as a result of the pore size of the gel which is usually prepared 1g of agarose in 100ml of distilled water. So a DNA fragment with 1000 base pairs will "struggle" its movement across the gel pore making it mive less faster and further. Movement and molecular weight of DNA are inversely proportional.

You might be interested in
Forensic anthropologists note that if we separate all of humanity into three groups (white, black, Asian), there are common trai
Talja [164]

Answer: C. In using a small number of "races," forensic anthropologists will incorrectly identify individuals from populations such as the Middle East or India, with the potential for false identification of the deceased.

Explanation:

Forensic anthropologists are the scientists who studies the morphological as well as the skeletal parts of the humans, animals, and birds both living or dead. These scientists can determine the age, sex and ethnic group or race in cases of impersonation as well as in cases of dead skeletal remains.

C. is the correct option, as it is a kind of bias. As the groups of humanity is wide in the form of white, black and Asian. Therefore, comparing the skeletal remains to small number of races can raise a valid criticism of the approach of skeletal examination and identification of deceased.

4 0
3 years ago
A molecular compound which dissolves in water and doesn't form ions in solution (not ionized).
ad-work [718]

c. C2H5OH

A common example of a nonelectrolyte is glucose, or C6H12O6. Glucose (sugar) readily dissolves in water, but because it does not dissociate into ions in solution, it is considered a nonelectrolyte; solutions containing glucose do not, therefore, conduct electricity.

6 0
2 years ago
What are the features of Nuclear Receptor Screening Services?
Annette [7]

Answer:

The nuclear receptor superfamily comprises a large group of transcription factors that play a key regulatory role in development and homeostasis of multicellular organisms. A special feature of nuclear receptors is their ability to bind to condensed chromatin templates, which makes them important initiators of gene transcription. Moreover, the ability of nuclear receptors to sequentially recruit a variety of transcription factors and coregulators to target promoters and to orchestrate the whole process of gene transcription confirms their biological significance and stimulates intensive research and a high level of scientific interest in this field. In this review, we summarise current knowledge regarding the structure and function of nuclear receptors as principal regulators of gene expression. Emphasis is given to the molecular mechanisms of nuclear receptor-mediated transcriptional activation and repression including recent progress made in this area.

3 0
3 years ago
Which of the following accurately reflects the beliefs on Earth's early history?
harina [27]
The following statements accurately reflect the beliefs on Earth's early history:
B. Scientists believe the early atmosphere lacked the oxygen necessary to support modern human life.

The following statements are incorrect:
A. Scientists believe that DNA may have existed before RNA - Scientists actually believe the opposite - RNA may have existed before DNA.
C. Scientists believe that microspheres nearly prevented the development of early life.
D. Scientists believe that oxygen was plentiful in the early atmosphere - again, scientists believed the opposite

3 0
3 years ago
true or false Earths atmosphere is mostly made up of visible gases including nitrogen,oxygen,and carbon dioxide.
inn [45]
I would not take my word on this but i do think that, that is TRUE.
3 0
3 years ago
Read 2 more answers
Other questions:
  • When foreign substances enter the body, the immune system provides specific antibodies that bind to them, forming complexes.
    8·1 answer
  • Evaluate and discuss the importance of maintaining biodiversity for future medical needs
    8·1 answer
  • Which of these would have the greatest diversity of sequences?
    15·1 answer
  • What is plasma??<br> Where is it found?
    12·2 answers
  • Explain 3 main steps in the process of DNA replication
    8·1 answer
  • What is thought to be the main driving force behind plate movements?
    9·1 answer
  • What is the function of each of these structures in the cell membrane? a) phospholipid bilayer b) peripheral protein c) integral
    7·1 answer
  • Please help will mark brainlest<br><br> What is located at both of the poles on Earth
    13·1 answer
  • Look at the teeth in the lions mouth. how is the structure of the lions teeth an adaptation
    8·1 answer
  • Imagine that certain laws of physics could be ignored and you were able to
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!