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
IgorC [24]
3 years ago
7

Atoms can have different numbers of which of the following electrons, protons neutrons or all of the above

Biology
1 answer:
OLEGan [10]3 years ago
7 0
Atoms may have different numbers of neutrons. Atoms are the smallest fraction of an element that can exist, and still show the properties of the element. They consists of electrons (negatively charged), protons (positively charged), and neutrons (no charge). The number of electrons is equivalent to the number of protons normally however an atom may loose or pick up electrons and  have a positive charge or negative charge. The number of neutrons in the nucleus may vary within a given element to give varieties of atoms we call isotopes. 
You might be interested in
Give an example of a living and non-living system
gogolik [260]
A non-living system would be a machine, such as an electrical system, air conditioning, etc. and a living system would be an animal, person, plant, etc.
7 0
2 years ago
9. If you could choose one ecosystem to spend the afternoon, would you choose the beach, the mountains, grasslands, or desert? W
OLEGan [10]

I would choose the mountain ecosystem.

The mountain ecosystem contains a complex living organisms. Mountain lands support a diverse array of habitats with large range of plants and animals. It is very crucial for biological diversity and is very wonderful to see. The climate is mostly cool which is fitting for relaxation.

3 0
3 years ago
Read 2 more answers
Please help me this is grade 7 work btw​
Luden [163]
Don’t fall for the links love!
8 0
3 years ago
Which is a factor that could interrupt the progress of succession?
Sindrei [870]
The answer is
 D. another natural disturbance 
7 0
3 years ago
Read 2 more answers
Note the two transcribed and translated DNA strips below. The two strips are identical except for a point mutation, where the fi
jekas [21]

Full question attached

Answer/ Explanation:

The original DNA sequence has a point mutation changing a G to a T. The resulting mRNA produced is always complementary to the DNA from which it is synthesised, so the original mRNA sequence has a T, whereas the mutated mRNA has a U. The tRNA is complementary to the mRNA, so the original has a G, and the mutated has a T.

<h3>Original DNA</h3>

GTTGGCGAATGAACGGAGGCTGACGTCTAAGCCTAGAAAAATTGG

RNA

CAACCGCUUACUUGCCUCCGACUGCAGAUUCGGAUCUUUUUAACC

tRNA

GUUGGCGAAUGAACGGAGGCUGACGUCUAAGCCUAGAAAAAUUGG

<h3>_______________________________________________</h3><h3>Mutated DNA</h3>

GTTGGCGAATGAACTGAGGCTGACGTCTAAGCCTAGAAAAATTGG

RNA

CAACCGCUUACUUGUCUCCGACUGCAGAUUCGGAUCUUUUUAACC

tRNA

GUUGGCGAAUGAACTGAGGCUGACGUCUAAGCCUAGAAAAAUUGG

This is a point mutation called a substitution. This does not affect the entire sequence of the protein, because the mutation is "in frame" meaning the mRNA sequence is still read in the same way by the protein producing machinery. However, it does change the 5th codon from UGC to UGU. If we look up the genetic code, we can see that both of these codons code for cysteine, so there will be no change in the amino acid sequence of the protein

5 0
3 years ago
Other questions:
  • What do starch and cellulose have in common?
    15·1 answer
  • A mother finds her 26-year-old daughter unconscious at home. her daughter is breathing and regains consciousness but appears con
    6·1 answer
  • how would plant populations be affected if the populations of decomposers such as earthworms decreased dramitically
    8·1 answer
  • Explain why molecules held together by covalent bonds don't have electrical charges
    8·1 answer
  • 1. An advertisement claims that three out of five dentists prefer a particular type of
    9·1 answer
  • Helium has an atomic number of two so for its outer energy level is full. Helium is considered
    14·1 answer
  • Cross two pink snapdragons. What is the genotypic and phenotypic probability of such a cross?
    8·1 answer
  • How do Zoos have animals develop extreme health complications.
    12·2 answers
  • an electric car uses a battery to make the car move. what kind of energy transition is happening in the car?
    10·1 answer
  • Plz help me with this....
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!