Which mutation causes either the in conclusion of an extra chromosome and offspring the collection of an entire chromosome

Whay is the following best defines climate

Draw the structure of dna nucleotide with adenine as nitrogenous base

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a. an ionic bond is formed between the oxygen and carbon atoms. b. four valence electrons are shared. c. two valence electrons are shared. d. valence electrons are shared between oxygen atoms.