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janethunit5

cellular genetics

QuestionAnswer
how many stages does mitosis go through? 4
prophase? chromosomes becomes visible, nuclear envelope dissolves, spindle forms.
metaphase? chromosomes line up along equator of cell.
anaphase? centromeres divide.
telophase? nuclear envelope forms at each pole,chromosome uncoil, spindle dissolves, cytokinesis.
what is meiosis? meiosis is the process by which cell division that halves the number of chromosomes to form reproductive cells or gametes.
what is mutations? Mutations are changes in DNA that happen randomly and may be inherited by offspring.
what does RNA stand for? ribonucleic acid.
true or false, genes are on a chain of DNA? true.
what are chromosomes? chromosomes is a supercoiled structure made of DNA
what does DNA stand for? deoxyribonucleic acid.
what carries DNA information? chromosomes.
true or false, nucleotides are the building blocks of DNA true
what is guanine always paired with? cytosine
what is is adenine always paired with? thymine
true or false, chromosomes always exist in pairs? true
chromosomes are located in the nucleus of every living cell? true or false true
mutations are very rare and not harmful to the organism? true or false false
DNA makes more by itself by..? breaking thee weak bonds & separating into two separate strands.
what does mitosis mean? its the process of by which cells divide so they can produce more cells.
Created by: janet13
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