Answer:
c
Explanation:
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<u>mutation.</u>
Melissa's child was born with an extra chromosome, resulting in down syndrome. this is an example of <u>mutation</u>.
<h3>What does mutation entail?</h3>
- A mutation is a change to an organism's DNA sequence.
- Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.
<h3>Describe the Down syndrome.</h3>
- An extra chromosome causes the disorder known as Down syndrome.
- In the body, chromosomes are discrete "packages" of genes.
- They control how a baby's body develops during pregnancy and after birth, determining how it will look and work.
- A newborn typically has 46 chromosomes.
- One of these chromosomes, chromosome 21, has an extra copy in infants with Down syndrome.
- Trisomy is the medical word for having an extra copy of a chromosome.
- Trisomy 21 is another term used to describe Down syndrome.
- The newborn may experience difficulties with their mental and physical development as a result of this additional copy, which alters how their body and brain grow.
<h3>Is Down syndrome curable?</h3>
- Down syndrome is incurable.
- Early intervention programs can aid in skill development.
- Speech, physical, occupational, and/or educational therapy are a few examples.
- Many people with Down syndrome lead happy, fruitful lives with assistance and treatment.
To learn more about down's syndrome visit:
brainly.com/question/6958863
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Answer:
There were mutations that led to some longer necks and some shorter necks, as the trees became taller, the short necks died out due to starvation, leaving behind only the longer necked giraffes. Survival of the fittest.
The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number. The number of electrons in a neutral atom is equal to the number of protons.