more multiple choice Flashcards
description of what happens in each phase of mitosis
Interphase
Cell cycle when the cell grows, copies it’s DNA, and prepares to divide.
Prophase
DNA and proteins condense into tightly coiled chromosomes. The nuclear envelope breaks down, centrioles begin to move to opposite poles, and spindle fibers form
Metaphase
spindle fibers attach to each chromosome. They align the chromosomes along the cell equator
Anaphase
Chromatids separate to opposite sides of the cell. Cytokinesis usually begins in late anaphase or telophase
Telophase
Nuclear membranes start to form, chromosomes begin to uncoil, and the spindle fibers fall apart
description of what happens in each phase of the cell cycle
increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage).
what nucleotides contain
Sugar molecule
In DNA: deoxyribose
In RNA: ribose
Phosphate group
Nitrogen containing base
In DNA: ATCG
In RNA: AUCG
the base pairing combinations for DNA and RNA
In DNA: ATCG
In RNA: AUCG