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PLEASE HELP me CAN u at LEAST help me with 3 or as much as u want

1) As a cell prepares to divide , a DNA molecule and its associated proteins coil to from a _______

2. what is the number of chromosomes found in a human body cell?

3. bacteria reproduce thorough an asexual process called _________

4.in plant cell , cytokinesis requires the formation of a new ____________

5. the 22 pairs of chromosomes in human somitic cells that are the same in male and females are called________

6.each individual protein structure that helps to move the chromosomes apart during mitosis is called a (n)_______

7.What happens to the sturcture of DNA in your cells pior to cell division ?


THANKS

2007-12-20 11:01:44 · 2 answers · asked by sweethoney9079 4 in Science & Mathematics Biology

2 answers

1) Chromosome (during prophase)
2)46 Chromosome and 23 Homologous pairs
3)Binary Fission (replication starts at the origin of replication, bacteria has only one chromosome and it is in a circle)
4)Cell Wall (duing cytokinises small vasicles line up in the middle of the cell and combine to for 1 long wall across the cell and then the vesicles connect to the cell wall, splits up, the membrane hardens to for your cell wall.
5)Autosomal Chromosomes(so all the other chromosome pairs except XX or girls and XY for guys)
6)Kinetochore microtubuels (the ones that attach to the centromeres of the cromosomes to pulle the sister chromatids apart) the ones that dont are called Non-Kinetochore microtubuels (they elongate to help stretch out the cell to halve in two)
7) The structure of your DNA during Interpahse (or prior to cell Division) is in a less condesned form and are called Chromatin.

2007-12-20 11:23:23 · answer #1 · answered by samuel o 2 · 0 0

1. chromosome
2. 46
3. binary fission
4. cell wall (starting with a cell plate)
5. autosomes
6. spindle fiber
7. the DNA is replicated or doubled

2007-12-20 11:18:38 · answer #2 · answered by ecolink 7 · 0 0

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