The mutation is a change in just one nucleotide in the gene for hemogloblin.
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Down syndrome occurs when the nondisjunction occurs with Chromosome 21. Meiosis is a special type of cell division used to produce our sperm and egg cells.
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a) protons b) neutrons c) electrons d) +1 e) nucleus f) -1 g) atomic number h) mass number
Explanation:
Answer:
Explanation:
Biodiversity, also called biological diversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth. A common measure of this variety, called species richness, is the count of species in an area.
