Biology ch 12
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| asexual reproduction | involves one parent and produces a clone
🗑
|
||||
| sexual reproduction | involves two parents
🗑
|
||||
| examples of asexual reproduction | binary fission, budding, fragmentation,
🗑
|
||||
| Karyotype | used to identify sex or aneuploidy (abnormal number of chromosomes)
🗑
|
||||
| chrosomes 1-22 | autosomes
🗑
|
||||
| chrosome 23 | sex chrosomes
🗑
|
||||
| homologous chrosomes | similar in sturcture and carry the same types of genes, one from each parent
🗑
|
||||
| diploid | contain a full set of chrosomes form both parents
🗑
|
||||
| stomatic cells | all body cells: skin, nerve
🗑
|
||||
| haploid | cells that contain 1/2 the full set of chrosomes
🗑
|
||||
| gametes | reproductive cells; egg and sperm
🗑
|
||||
| how many divisions occur in meiosis | 2
🗑
|
||||
| in what cells does meiosis occur in | sex cells
🗑
|
||||
| how many chromosomes end up in the daughters cells | half the amount
🗑
|
||||
| how many daughter cells result in meiosis | 4
🗑
|
||||
| Spermatogenesis | results in 4 equal sperm cells
🗑
|
||||
| oogenesis | resluts in 1 large egg and 3 polar bodies
🗑
|
||||
| interphase | longest phase, contians G1, S, G2
🗑
|
||||
| Prophase 1 | snapsis occurs, crosing over occurs, spindle fibers form. chrosomes condense
🗑
|
||||
| synapsis | homologous chrosomes come together to form a tetrad
🗑
|
||||
| tetrad | two chrosomes or for chromatids
🗑
|
||||
| crossing over | segments of nonsister chromatids break and reattach to the other chromatid, causes genetic recombiantion
🗑
|
||||
| chiasmata | where chrosomes touch each other and exchange genes
🗑
|
||||
| metaphase 1 | shortest phase, tetrads align, indepnednet assortment occurs
🗑
|
||||
| anaphase 1 | homologous chrosomes seperate and move towards the poles, sister chromatids remaind attached at their centromeres
🗑
|
||||
| telophase 1 | each pole now has haploid set of chrosomes, cytokinesis occurs and two haploid daughter cells are formed
🗑
|
||||
| interkinesis | short period of time between meiosis 1 and 2
🗑
|
||||
| prophase 2 | nucleus and nucleolus dissapear, chrosomes condense, spindle forms
🗑
|
||||
| metaphase 2 | chrosomes line up at equator
🗑
|
||||
| anaphase 2 | sister chromatids seperate
🗑
|
||||
| telophase 2 | nuclei and nucleoli reform, spindle disappears, cytokinesis occurs, 4 haploid daughter cells are produced
🗑
|
||||
| independent assortment | chrosomes assort independently from one another during meiosis
🗑
|
||||
| random fertilization | whichever gamete is involved in actual fertilization determines the genes of the offspring
🗑
|
||||
| nondisjunction | occur when homologous chrosomes fail to seperate at meiosis 1 or when chromatids fail to separate at meiosis 2
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
ella27
Popular Biology sets