Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Chapter 8
PBSC CHROMOSOMES & CELL DIVISION BSC1005 259323 CONCEPTS IN BIOLOGY
| Question | Answer |
|---|---|
| This monosomy occurs in females which have only one X chromosome. | Turner Syndrome |
| The portion of mitosis that includes: chromosomes re-condensing, a new nuclear envelope forms for each cell; cytokinesis occurs here also. | Telophase |
| The total number of chromosomes in a diploid human cell. | 46 |
| The term for cells having half the normal number of chromosomes. | Haploid |
| The nuclear division mechanism which results in hapoid (1/2 the chromosome number) cells for reproduction | meiosis |
| Females have the following sex chromosomes _______. | XX |
| True or False? The father determines the sex of the offspring in humans. | True |
| Another name for sex cells (eggs & sperm): | Gametes |
| Non-disjunction is a failure of chromosomes to separate during _____. | Meiosis |
| What is the numerical representation for any diploid number of chromosomes? | 2n |
| The term for cells having two chromosomes of each type. | Diploid |
| Total number of chromosomes in a human diploid cell. | 46 |
| The nuclear division mechanism which results in clones for growth and development. | mitosis |
| 2n + 1 conditions due to non-disjunction are called a _____. | Trisomy |
| Chromosome pairs which are the same type (shape, number, same genes). | Homologous |
| The division of the cytoplasm which occurs during telophase is called _______. | Cytokinesis |
| The phase of interphase when the DNA is replicated, is known as _______. | Synthesis - S |
| What percentage of the cell's life cycle is spent in Interphase? | 90% |
| The division of the cytoplasm in animal cells (during telophase). | Cleavage Furrow |
| A ball of cells resulting from uncontrolled growth. | Tumor |
| The region of the duplicated chromosome where the sister chromatids are joined. | Centromere |
| This is another name for Down's Syndrome. | Trisomy 21 |
| 2n - 1 conditions due to non-disjunction are called a _____. | Monosomy |
| All chromosomes which are NOT sex chromosomes are called _____. | autosomes |
| How many chromosomes in a human gamete (egg or sperm)? | 23 |
| The "arms and legs" of the chromosome (X shaped) | Chromatids |
| The total number of chromosome pairs in a diploid human cell. | 23 |
| This is an organized display of chromosomes in a duplicated state. | Karyotype |
| Explain how crossover occurs? (Between what portions of chromosomes) | Non-sister chromatids of homologous chromosomes |
| The division of the cytoplasm in plant cells (during telophase). | Cell Plate |
| The nuclear division mechanism whereby the daugher cells are haploid. | Meiosis |
| This syndrome occurs in males with the XXY genotype. | Klinefelter |
| The portion of mitosis wherein the chromosomes line up at the spindle equator. | Metaphase |
| The portion of mitosis wherein the sister chromatids are separated and each is pulled toward an opposite pole. | Anaphase |
| Males have the following sex chromosomes _______. | XY |
| What is the purpose of crossover during meiosis? | Genetic Mixing (Recombination) |
| What is the purpose of meiosis (producing gametes)? | Sexual reproduction |
| Genes which have the potential to cause cancer (usually genes which are associated with cell growth). | Oncogenes |
| The G1 phase of interphase stands for _______. | Growth or GAP |
| This 2n + 1 condition is due to a third copy of chromosome #21. | Down Syndrome |
| Malignant tumor cells that break off from the primary tumor and form new tumors at distant sites. | Metastasis |
| Compared to mitosis, how many stages of meiosis are there? | Eight (4 -PMAT I and 4 PMAT II) |
| The portion of mitosis wherein the DNA condenses and two poles are established. | Prophase |
| What is the numerical representation for any haploid number of chromosomes? | n |
| DNA which is complexed with proteins. | Chromosomes |
| Chemicals or radiation that can damage DNA. | Mutagens |
Created by:
PRO Teacher
callen-pbsc
Popular Biology sets