Biology Final Lab

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What are the structural and functional units of living organisms?

cells
What two process does cell division consist of?

nuclear division; cytokinesis
What is nuclear division?

mitosis and meiosis
What is the division of the cytoplasm and associated parts?

cytokinesis
What does nuclear division of mitosis result in?

two identical daughter cells
What kind of cells does multicellular organisms have?

red blood cells; muscle cells; liver cells
What is different about Meiosis's nuclear division compared to Mitosis?

the daughter cells produced is reduced to one half of the parent cell.
What occurs as plant cell division and animal cell division?

mitosis
What are the stages in plant cell division?

interphase, (PMAT) Prophase, Metaphase, Anaphase, Telophase, and daughter cells
What is a structure formed in the cell during mitosis that has rays connected to the the centrosome?

Asters
What is the DNA that is present in a mass that replicates?

Chromatin
What is in an interphase nucleus where a mass of RNA and proteins are formed into subunits of ribosomes?

nucleolus
What is the double membrane surrounding the nucleus in the cell?

nuclear membrane
What is tightly coiled DNA that is visibly rod shaped?

chromosomes
what is the one strand of a double stranded chromosome called?

chromatid
What is a small,cylindrical cell organelle in the cytoplasm near the nucleus that divides during mitosis?

centrioles
What is of a eukaryotic chromosome with a constricted region having binding sites for microtubles?

centromeres
What is a common partition between adjacent cell?

middle lamella
What is essentially seen as the same as interphase?

daughter cells
How mant daughter cells does meiosis produce?

four
What are the two nuclear divisons in meiosis?
- Meiosis1 (1st division) the reduction division.
- Meiosis2 ( 2nd division) separates the chromatids.
What are chromosomes that come together in pair that look alike and carry genes for the same traits?

homologous chromosomes or pairs.
What is diploid?
- 2N two examples of each chromosome.
- before meiosis
What is Haploid?
- 1N one ex. of each chromosome
- after meiosis.
What does the Meiosis reproduction do?

increases the genetic variation in the pop.
What is the process where each pair of homologous chromosomes come together during Meiosis 1?

synapsis
What is the process where chromatid of homologous chromosomes may exchange parts?

crossing over
What is the difference between mitosis and cytokinesis?

mitosis is nuclear division and cytokinesis is cytoplasmic divison.
What process is busily occuring in a meristem?

mitosis and cytokinesis are occuring
What is the region of cell divison that lies behind the root cap?

meristem
What is located at the root tip; is non dividing; and protects underlying cells?

root cap
How can crossing over introduce additional genetic variability into the products of meiosis?

it results in new combinations of genes.
What is the formation of sperm in testes of male?

spermatogenesis
What is the formation of ova or eggs in ovaries of female?

oogenesis

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Lily_Dee_Mee

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Card Set

Biology Final Lab

Description

Mitosis and Meiosis

Updated

2011-12-04T23:56:58Z