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
Leona [35]
3 years ago
15

To trace our maternal lineage, we observe mutations that have accumulated in our mitochondrial dna (mtdna). in the dna isolation

and amplification lab, we amplified a highly variable and non-coding region in the hyper-variable segment i of our own mtdna using polymerase chain reaction. why did we choose to amplify a non-coding region rather than a coding region to determine our lineage?
Biology
1 answer:
Sergio [31]3 years ago
4 0
In the coding region, natural selection tends to eliminate all of the mutations because of the high importance these regions have. The coding region contains genes that synthesize proteins and the changes in the DNA sequence can have devastating effects on the cell. Therefore, there are very few differences in the sequences of coding regions that can help us trace the lineage.
On the other hand, in the non-coding regions, the mutations often accumulate because they have little effect on the cell and the adaptive value of the organism. This enables us to trace up the lineage by comparing the sequences and seeing the differences in the sequences. 
You might be interested in
Which of the following are true about secondary consumers in an ecosystem?
SSSSS [86.1K]
It’s 2, 4, and 6!!! Please mark me brainlest❤️
8 0
2 years ago
Is it possible to cause a man made mutation?
ivann1987 [24]

Answer:

no

Explanation:

7 0
3 years ago
Read 2 more answers
Plants don't move arou d so why don't move around,so why do they need energy
Murrr4er [49]

The plant needs energy to grow and prosper

7 0
3 years ago
Read 2 more answers
What is the primary source of energy for all food chains?
Darya [45]

Answer:

sunn

Explanation:

this is my alt acc

7 0
3 years ago
Place the following events that occur at the vertebrate neuromuscular junction in the correct order. I Depolarization of the mus
meriva

Answer:

Generation of an action potential in the neuron.

Stimulation of Ca2+ entry into the neuron

Release of acetylcholine into the synapse

Depolarization of the muscle fiber membrane

Explanation:

The following events takes place in the vertebrate neuromuscular junction

a) Nerve Action Potential - Action potential reaches the axon terminal

b) Entry of calcium ion - The calcium ion reaches the axon terminal and enter into the presynaptic terminus after which the Synaptic vesicles fuse with the membrane of axon terminal

c) Releasing of Arch Quanta - Acetylcholine is released into synaptic cleft which then  binds to the receptor sites on motor end plate

d) The  Na+/K+ channels opens and Motor end plate becomes depolarized.

3 0
2 years ago
Other questions:
  • Which type of ecosystem is most likely to be characterized by thick, rich soils?
    9·2 answers
  • Why does secondary succession occur faster than primary succession?
    10·1 answer
  • Examples of different ways that observations can be used in scientific inquiry
    11·1 answer
  • One day, Mark notices that Karen is cleaning up Daniel's room for the 4th time this week. When he approaches her about it later,
    10·1 answer
  • Mammals generally care for their young. Most turtles abandon their young. What term describes both of these behaviors?
    14·2 answers
  • Which of these infectious, viral diseases affects the immune system and can cause major damage to organs such as the liver and b
    10·1 answer
  • Charles darwin acknowledged the importance of sexual reproduction when formulating his theory of natural selection.
    8·1 answer
  • in fruit flies (drosphilia), one eye color Gene is x-linked, with a recessive white allele and a dominant red allele. if white e
    9·2 answers
  • 23. Which macromolecule is responsible for the creation of proteins?
    10·1 answer
  • The teacher asked the students to design an experiment that would demonstrate that temperature will affect the pressure of a gas
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!