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zimovet [89]
2 years ago
13

What is unstable, highly reactive atoms or molecules…that can cause internal body damage?

Biology
1 answer:
navik [9.2K]2 years ago
7 0
Highly reactive atoms or molecules that can cause damage to cells are called free radicals.
<span>Free radical is an atom, molecule, or ion that has an unpaired valence electron (electron in outermost shell). Because of that, free radicals are very unstable and they react quickly with other substances in order to make up the number of electrons in their outer shell. Free radicals may be generated in many different ways such as redox reactions, ionizing radiation, heat, electrical discharges..</span>
<span>Oxidative stress is a process which happens within the body and it is caused by oxygen free radicals or reactive oxygen species (ROS). Oxidative stress can damage cells, leading to a range of diseases and cause aging.</span>
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2. Dominant trait: cleft chin (C) Mother’s gametes: Cc
kakasveta [241]

Answer No 2:

      c      c

C   Cc     Cc

c    cc      cc

The genotype of the offsprings would be Cc, Cc, cc, cc i.e heterozygous cleft chin and no cleft chin. The phenotype of the offsprings could be 50% cleft chin and 50% without cleft chin.

there will be 50% chance of the child to have cleft chin.

Answer No 3:

        A        a

A     Aa       Aa

a      Aa        aa

There will be 25% chance for the offspring to have arched feet. As arched feet is a recessive trait, so for this trait to occur both the alleles of the gene should be recessive i.e aa.

Answer No 4:

    B      b

b   Bb    bb

b    Bb    bb

As blonde is a recessive trait, so both the alleles for this gene should be recessive for this trait to occur. Hence, according to the punnet square, there will be 50% chance for the offspring to be blonde.

Answer No 5:

           F      f

F          FF    Ff

f           Ff     ff

As normal vision is a resessive trait, hence both the alleles of the gene should be recessive for the trait to occur. According to the punnet square, there is 25% chance that the child will have normal vision.

3 0
3 years ago
What type of cells are in leaves?
Radda [10]

Answer:

um leaf cells?

Explanation:

6 0
3 years ago
- Which object best represents a true scale model<br> of the shape of Earth?
ANTONII [103]
A circle that’s the answer
5 0
3 years ago
Read 2 more answers
The process by which one DNA molecule is copied to make 2 DNA molecules is called
Pavel [41]

Answer:

The process that is used to describe this is C. Replication

Explanation:

This model has been developed and worked by many people long ago who were all interested in looking how DNA is the genetic blueprint by which the organism is made up.

5 0
3 years ago
Where do the aurora borealis usually take place at?
neonofarm [45]

Answer:

magnetic north pole

Explanation:

They occur most frequently in a belt of radius 2500 km centered on the magnetic north pole. This so-called auroral zone extends over northern Scandinavia, Island, the southern tip of Greenland and continuing over northern Canada, Alaska and along the northern coast of Siberia.

7 0
3 years ago
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