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iren2701 [21]
3 years ago
10

Why are many bacterial infections more difficult to treat now than they were fifty years ago?

Biology
1 answer:
Korvikt [17]3 years ago
6 0

Answer:People are more vulnerable from drugs and things we do nowadays

Explanation:

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Compare the two new strands of dna are they the same or different? why?
Leni [432]
The two new strands are different from each other ,both of them have only one strand from the original DNA and the other strand is complementary . eg if a strand has the following base pairs .. AACCGGT ( consider this as the strands)
                                                           TTGGCCA
now they are going to be seperated AACCGGT     TTGGCCA
                                                         TTGGCCT      AACCGGT
as u can see the two NEW strands formed are similar but NOT IDENTICAL to each other .
6 0
3 years ago
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What is true about electromagnetic waves from the sun? A. They travel through space without a medium B. They consist of electric
Cloud [144]

Answer:

Option A) is correct.

Explanation:

Electromagnetic waves refer to waves that are created due to vibrations between a magnetic field and an electric field.

Electromagnetic waves do not require a medium to travel through space without a medium. Electromagnetic waves can travel through air,  vacuum of space and solid materials.

So,

Option A) is correct.

3 0
3 years ago
2 Points<br> In humans, which set of chromosomes do males have?
ser-zykov [4K]
Males have XY and females have XX
7 0
3 years ago
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(protein)?
belka [17]

Answer:

Since, the original DNA sequence has not been provided, the mutation can be an insertion/deletion or a frameshift mutation.

  1. Mutated DNA
  2. Frameshift mutation/ insertion or deletion
  3. All the amino acids  changed after the  point mutation​

Explanation:

Frameshift Mutation:

  • A frameshift mutation is the alteration in the reading frame of the DNA due to the addition/deletion of one or two nucleotides.
  • This type of mutation moves the mRNA sequence one or two bases forwards or backwards which disrupts the three base codons sequence required for translation into proteins.
  • The CT at the end of the sequence is indicative of a frameshift in the DNA reading frame.
  • Frameshift mutation affect all amino acids in a polypeptide chain as all codons are moved one or two steps forwards or backwards.
6 0
3 years ago
A_____is a group of the same kind o living things in an ecosystem.
rewona [7]
<em>A<u> population </u>is a group of the same kind of living things in a ecosystem.</em>

<em>~I hope this helps! ;)</em>
4 0
3 years ago
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