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snow_lady [41]
3 years ago
14

Explain whether nuclear or mitochondrial DNA is better for identifying a specific person

Chemistry
1 answer:
hodyreva [135]3 years ago
7 0

Answer:-

Nuclear DNA is inherited from all ancestors. But mitochondrial DNA is inherited from a single lineage. The DNA inside of mitochondria (called mtDNA) unlike DNA inside the nucleus, comes from only mothers.

It is not a mixture of our parent’s DNA, and each person’s mtDNA is nearly identical to his or her mother’s mtDNA.

Thus only nDNA being more unique is more useful for identifying in forensics. In cases where nDNA is not sufficient, mtDNA is used.

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Which process results in a chemical change?
mariarad [96]
2) melting an iron bar
8 0
3 years ago
Please please help me i do not get this
Annette [7]

Answer:

C⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

A divergent boundary is when two tectonic plates move apart from one another.

8 0
3 years ago
Read 2 more answers
Select True or False: Consider the reaction N2(g) 3H2(g) 2NH3(g). The production of ammonia is an exothermic reaction. When heat
ANEK [815]

Answer:

False

Explanation:

As I like to think of it, equilibrium will shift either 'forwards' (to increase products) or 'backwards' (to increase reactants) to oppose any change in system;

If heat is added, the equilibrium will shift in the direction that reduces heat within the system;

In other words, it will shift in favour of the endothermic reaction, i.e. the reaction where heat is gained by the molecules/atoms and therefore taken out from the system;

If the 'forwards' reaction, producing NH₃, is exothermic (i.e. energy is released in the reaction), then the 'backwards' reaction is endothermic;

So the equilibrium will shift in this direction, which is the reaction of 2 NH₃ molecules producing N₂ and 3 H₂

5 0
2 years ago
A certain liquid has a density of 2.67 g/cm3. 30.5 ml of this liquid would have a mass of __________ kg.
8090 [49]
Hey there!

Density = 2.67 g/cm³

volume = 30.5 mL

Mass = density *volume

Mass = 2.67 * 30.5

Mass = 81.435 g

Therefore:

Mass in kg :

1 kg -------------- 1000 g
?? ----------------- 81.435 g

mass = 81.435 * 1 / 1000

mass = 0.081435 kg 


8 0
3 years ago
Priscilla was building a circuit that used copper wires to connect a battery to a light bulb. As she connected the final wire fr
algol [13]

Answer:

The voltage or potential difference

Explanation:

What makes current flow in a circuit is the voltage or the potential difference.

This force is supplied by the battery or the mains electrical circuit.

  • Every circuit requires the voltage to drive current through
  • When a circuit is complete, the battery is able to overcome any resistance by the generating enough voltage which is the force to drive the current through.
7 0
3 years ago
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