Answer:
The chance of a normal couple having a child with down syndrome is 1 to 600 births.
Explanation:
Down syndrome is a genetic flaw that occurs when the fetus is being formed.
A human cell considered normal has 46 chromosomes, divided into 23 pairs. For some unknown reason, an error may occur at the beginning of embryonic development and an extra chromosome is created, which binds to par 21. The result is cells with 47 chromosomes. This causes the said syndrome.
It is important to know that this failure happens at random. It is nobody's responsibility. It has not been proven to date that lifestyle, actions during pregnancy, smoking, drinking, medicines, environmental factors or kinship between the couple can influence this occurrence. She is not contagious either. The likelihood of a normal couple having a child with the syndrome is approximately 1 to 600 births.
Mrna carries the transcription (of dna in nucleus) between the nucleus and cytoplasm, there it attaches to ribosomes.
Answer: If they are introduced to a new environment unlike their previous ones, which is wet, damp, moist, and humid areas, the population of toads in the area will most likely die, and the insects will become overpopulated (or rapidly grow)
Explanation: Because the food chain needs to stay stable!
Coyote population change due to change occur in the climate.
<h3>How coyote population changed?</h3>
The modern Northeast (Maryland) coyote population changed from the historic (North Dakota) population over the past 70 years due to climate change as well as change that occurs in their genes. Climate change is the major factor that is responsible for change in coyote population.
So we can conclude that coyote population change due to change occur in the climate.
Learn more about climate here: brainly.com/question/17922964
