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Answer:
The roots as they absorb water and nutrients.
we can say that (F) is the dominant healthy gene and (f)is the recessive anemia gene
Falconi anemia is a recessive autosomal disease, therefore it will affect men and women equally
1)Arlene's genotype is (ff)
2)Ann's genotype is (Ff)(she's a carrier). Michael's genotype is (Ff)(also a carrier)
3)George's genotype is (Ff)
4)Sandra's genotype is, most likely (FF)
5)Sam, Ann and Michael are most likely carriers.
Answer:
Muscles contract through a chain process of electrochemical signalling between the nervous system and muscles.
Explanation:
The muscle contraction is initiated by the nervous system by sending a signal. This signal also referred to as action potential travel through the motor neuron. This motor neuron releases a chemical signal to muscle when the electrical signal carried by it reaches the neuromuscular junction (a junction where motor neuron meets the muscles).
The chemical message referred to as neurotransmitter binds to the receptors present on the muscle fibers. These receptors causes the influx of sodium ion which in turn trigger the release of calcium ion thereby initiating the contraction of muscles.
We could send aliens information that is good about us not the bad things. Don't share weaknesses, because that could probably lead to some bad things. We should share valuable info with the aliens.
