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adelina 88 [10]
3 years ago
14

How can scientists use DNA in crime scene investigations? (1 point) They analyze the size of the DNA to determine where a crime

was committed. They analyze the GC content of the DNA to determine how a crime was committed. They analyze the sequence of bases in the DNA to determine who committed a crime. They analyze the age of the DNA to determine when a crime was committed.
Biology
2 answers:
hammer [34]3 years ago
8 0
They analyze the sequence of bases in the DNA to determine who committed a crime.
trapecia [35]3 years ago
8 0

Correct answer: C). They analyze the sequence of bases in the DNA to determine who committed a crime

The DNA profiling is used to identify the perpetrator. Forensics scientist is using the nucleotide sequence to find how who has done the crime. They study and analyze the DNA sequence in order to solve the crime.

DNA is used where a suspect is identified, the sample of suspected is compared to the evidence that is found at the crime scene. If the DNA sequence of the suspect is similar to the DNA, that is found at a crime scene. It means the crime is done by that person.

Hence, the correct answer would be option C.






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Which best describes the reactions and products of photosynthesis?​
Nina [5.8K]

Answer:

Reactants are formed inside the plant, and products are taken in from the environment by the plant. Reactants are taken in from the environment by the plant, and products are formed inside the plant.

Explanation:

7 0
3 years ago
Name ALL the alleles that control human blood groups.​
Naily [24]

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I B shows the codominance

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8 0
2 years ago
An inhibitory stimulus has occurred. B. Chemically gated potassium channels have opened. C. Excessive potassium has diffused out
andrezito [222]

Given question is incomplete. Complete question has been attached.

Answer:

C. Excessive potassium has diffused out causing hyperpolarization.

Explanation:

The nerve action potential can be divided into following stages:

  • Stimulus is detected by the cell in resting stage.
  • Sodium channels in the membrane open from where influx of sodium ions occur which is called depolarization
  • After a while, sodium channels close and potassium channels open from where efflux of potassium ions occur which is called repolarization.
  • The membrane potential further lowers due to continous efflux of potassium ions which is called hyperpolarization.
  • After a while potassium channels close and membrane returns to its resting stage.

In the given figure, stage 4 depicts hyperpolarization because the membrane potential has dropped to the lowest point below -70mV. Hence, option C is correct.

7 0
3 years ago
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Answer:

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4 0
2 years ago
What would happen if the pouter pigeon and the fantail pigeon and the fantail pigeon were selectively bred?
lozanna [386]
<h2>Answer:</h2>

The offspring population will contains the desirable characteristics of both fantail pigeon and the fantail pigeon.

<h3>Explanation:</h3>
  • The selective breeding is the planned breeding between two organism of the population with desirable properties to result in the new traits from both parents in the single next generation offspring.
  • In this case, the offspring of the pouter pigeon and the fantail pigeon will contain the traits of pouter and it also has fantail.
  • The new generation will be selective breed an it is from the breeding of intra specie organism. If breeding is inter specie than the offspring is most probably infertile.
4 0
3 years ago
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