Term
| Which cells in the body have Haploid number of chromosomes? |
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Definition
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Term
| Meiosis is the nuclear division that reduces the chromosome number from what, to what? |
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Definition
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Term
| What number refers to the complete number of chromosomes in a cell? |
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Definition
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Term
| When a sperm fertilizes an egg it creates a one celled structure with what number of chromosomes? |
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Definition
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Term
| What are the pairs in a somatic cell called? |
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Definition
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Term
| How many chromosomes do a human have? |
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Definition
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Term
| How many nuclear divisions do Meiosis require? |
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Definition
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Term
| What is the resulting product of Meiosis? |
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Definition
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Term
| The parent cell that divides by meiosis contains what number of chromosomes? |
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Definition
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Term
| What number of chromosomes do the daughter cells contain? |
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Definition
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Term
| Are the daughter cells genetically identical to the parent cell in Meiosis? |
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Definition
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Term
Prior to Meiosis
i what has to happen to the DNA? |
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Definition
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Term
| In meiosis how many sister chromatids per chromosomes are visible during prophase I? |
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Definition
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Term
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Definition
| Homologous chromosomes line up and come together side by side. |
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Term
| At the end of meiosis I 2 daughter cells form. Do they still have homologous pairs of chromosomes? |
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Definition
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Term
| At the end of meiosis II how many daughter cells form? Are they in duplicated form or as daughter chromosomes? |
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Definition
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Term
| Daughter cells formed from meiosis become what in your body? |
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Definition
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Term
| Does DNA replicate during interkinesis? |
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Definition
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Term
| How does meiosis guarantee that each gamete formed is genetically unique? |
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Definition
| By Crossing over and Independent-Assortment |
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Term
| What happens to the centrosomes and what begins to form during Prophase I? |
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Definition
| Move toward opposite poles: Spindle Fibers |
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Term
| What happens to the Nuclear membrane and Nucleolus during Prophase I? |
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Definition
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Term
| What happens to the homologous chromosomes during Prophase I? |
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Definition
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Term
| During Metaphase I where do the homologous pairs line up? |
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Definition
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Term
| What happens in Metaphase I that generates genetic variety? |
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Definition
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Term
| What happens to the Spindle fibers during Telophase I ? |
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Definition
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Term
| During Telophase I do a new nuclear membrane need to form around the seperated homologues? |
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Definition
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Term
| During telophase I if a cell were to split in 2, which process occurs to split the cytoplasm? |
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Definition
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Term
| What happens to all of the chromosomes during metaphase II? |
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Definition
| The align at the Metaphase plate |
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Term
| What happens during Anaphase II? |
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Definition
| Sister chromatids seperate and become daughter chromosomes |
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Term
| What happens during Prophase I that generates genetic variability? |
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Definition
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Term
| When does the nuclear membrane reform? |
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Definition
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Term
| When does the chromatin condense? |
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Definition
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Term
| When do the chromosomes elongate into chromatin? |
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Definition
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Term
| Are the daughter chromosomes formed at the end of Meiosis Haploid or DIploid? |
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Definition
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Term
| Where does meiosis occur in the body? |
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Definition
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Term
| Bivalents are formed in what phase of meiosis? |
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Definition
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Term
| What does the life cycle refer to? |
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Definition
| All reproductive events that occur from one generation to the next. |
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Term
| In human males where does spermatogenesis occur to form sperm? |
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Definition
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Term
| In human females where does oogenesis occur to form eggs? |
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Definition
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Term
| In males testes contain stem cells called? |
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Definition
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Term
| The diploid cell that will divide by Meiosis I in males is called? |
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Definition
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Term
| After meiosis I and cytokinesis 2 what are formed in males? |
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Definition
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Term
| After Meiosis II and cytokinesis 4 what are formed in males ? |
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Definition
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Term
| Upon maturation at the end of Meiosis what is formed in males? |
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Definition
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Term
| Ovaries contain stem cells called? |
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Definition
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Term
| What is the diploid cell that will divide by meiosis I in females? |
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Definition
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Term
| After meiosis I and cytokinesis what structures are formed in females? |
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Definition
| Secondary oocyte and Polar bodies |
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Term
| The secondary oocyte begins meiosis II but stops? |
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Definition
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Term
| If sperm feritlizes the secondary oocyte what will the secondary oocyte finish? |
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Definition
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Term
| What do you call the correct number of chromosomes in a species? |
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Definition
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Term
| What do you call it when there is a change in the number of chromosomes? |
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Definition
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Term
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Definition
| failure of homologous chromosomes or sis chromatids to separate properly during meiosis |
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Term
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Definition
| When individual only has 1 type of chromosome |
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Term
| What is primary nondisjunction? |
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Definition
| Happens in Meiosis I: both of homologous pair go to same daughter cell |
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Term
| What is secondary nondisjunction? |
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Definition
| In meiosis II: both daughters go to same gamete |
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Term
| What is the common name of trisomy 21? |
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Definition
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Term
| If a parent had a child with down syndrome nondisjunction may have occured in who? |
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Definition
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Term
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Definition
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Term
| How many X sex chromosomes do turner individuals have? |
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Definition
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Term
| Is a person with Klinefelter male or female? |
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Definition
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Term
| If a parent had a child with Klinefelter syndrome nondisjunction occured in who? |
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Definition
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Term
| What does the Karyotype for someone who has Klinefelter look like? |
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Definition
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Term
| What does the karyotype for someone who has Turner Syndrome look like? |
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Definition
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Term
| If a parent had a child with Jacobs syndrome nondisjunction may have occured in who? |
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Definition
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Term
| What does the karyotype for someone who has Jacobs syndrome look like? |
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Definition
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Term
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Definition
| When end of chromosome breaks off or 2 simulatneous breaks lead to loss of internal segmant |
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Term
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Definition
| Prescence of chromosomal segment more than once in same chromosome |
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Term
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Definition
| Occurs when segment of chromosome is turned 180 degrees |
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Term
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Definition
| movement of chromosome segment from one to another non homologous chromosome |
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Term
| In what phase does crossing over occur? |
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Definition
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Term
| Does DNA replicate during interkinesis? |
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Definition
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Term
| What phases does nondisjuntioning occur? |
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Definition
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Term
| In humans how many chromosomes does the secondary oocyte have? |
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Definition
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Term
| When one chromosome piece moves to another non homologous chromosome what has taken place? |
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Definition
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Term
| Do plants have centrioles? |
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Definition
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Term
| In meiosis the stage where sister chromatids separate is called? |
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Definition
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Term
| What is intresting about the size of the secondary oocyte compared to the polar body? |
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Definition
| The secondary oocyte is much bigger than the polar body |
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