<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:
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Definietly C because both of the new dna strand will end up together in a new cell and the other one will be discarded from the cell
Answer:
The correct answers are the second and the fifth statements.
Explanation:
The non-native species are introduced in the community either as a consequence of human activity or because of natural range extensions. The majority of the non-native species exhibit deleterious ecological effects and are considered as invasive species. Almost all the ecosystems are at threat due to the deleterious effects of the introduced invasive species.
The non-native species are the prime threat to the surroundings as they can modify habitats and change the ecosystem services and function, and may replace or crowd-out the local species. The non-native species are considered as the second-ranked major threat to biodiversity after habitat destruction like deforestation.
These species threaten biodiversity as they can grow rapidly and can act as parasites or predators against the native species and do not possess any kind of natural predators so that the growth of the introduced species can be monitored. These species can act as competitors, as they compete with the local species for the resources available.
They are called nephridia................B
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