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Cell division & Dna

Learning about cell division and info about Dna

QuestionAnswer
Is a chromosome highly coiled? Yes
Are Genes larger than chromosomes? No
Do genes determine what characteristics offspring inherit? Yes
Does a human body cell have 23 pairs of chromosomes or 46 total? Yes
Does Dna direct the production of proteins in a cell? Yes
Do chromosomes only occure in egg and sperm cells? No
Are chromosomes located within the cytoplasm of a cell? No
Do egg and sperm cell have half the chromosomes as other human cells do? Yes
Do the letters DNA stand for diniate? No. It stand for Dioxyribonucleic Acid.
Do DNA molecules have a structure that allows it to duplicate easily? Yes
Is the shape of a DNA molecule called a double helix. Yes
Do human beings have 100 genes? No
What are the correct order in which the parts of the cell cycle occur? Interphase, Phrospase, Metaphase, Anaphase, Telophase, and cytokinesis.
What part of the cell cycle is the longest? Interphase
What happens during the part of the cell cycle that is called mitosis? Mitosis begins at Phrosphase and ends at Telophase. It does undergo DNA replication during interphase. It is when they seperate and move to other side. When the chromosomes seperate.
What happens during the part of the cell cycle that is called cytokinesis? The cytoplasm divides and 2 new daughter cell are formed.
How many homologous chromosomes does a human have? 46
How many homologous pairs does a human have? 23
How much of the cell's lifespan does Interphase occure? 90%
What is the passing of traits from parents to offspring? heredity
what is the life cycle of a cell? cell cycle
What is the chemical substance that controls the structure and function of cells? DNA
What is the cell structurek that stores the hereditary information for the same traits? Homologous chromosomes
What is the process of cell division that forms 2 nuclei that contain identical DNA? Mitosis
What is a cell produced by the division of a parent cell Daughter cell
the process of cell division that forms sex cells, each of which has half the number of chromosomes as found in the parent cell Meiosis
The divison of the cytoplasm of a cell is called what? Cytokineisis
Before cells divide, the nucleus has to reproduces. This process is called what? Mitosis
DNA replication takes place during the first stage of nuclear reproduction called what? Interphase
Sex cells have only _ the number of chromosomes of body cells? How many? 1/2
Fibers called what form around the centrioles of animal cells during the reproduction of the nucleus? Spindle Fires
DNA is often described as this? What is it? A double helix and a twisted zipper
DNA is made up of 3 substances, all connected together in a definite pattern? What are they? Phosphates, Deoxyribose(sugar), and the 4 bases.
What are the 4 nitogen bases called? Adenines(A), Cytosine(C), guanine(G), and thymine(T).
What does Guanine(G0 pair up with?
Created by: deleted user
 

 



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