Terms : Hide Images
| 9226771053 | chromosomes & chromatin | both DNA both in the nucleus | 0 | |
| 9226778487 | most animals and plants chromosomes occur in _______ | pairs | 1 | |
| 9226781194 | homologous chromosomes | paired chromosomes | 2 | |
| 9226785483 | humans 46 chromosomes or... | 22 pairs= autosomes and 1 pair= sex chromosomes | 3 | |
| 9226795329 | chromosomes are in pairs because | one copy from mom and one from dad | 4 | |
| 9226798401 | sex chromosomes | 23rd pair of chromosomes, determines whether you are male/female | 5 | |
| 9226805333 | female produce eggs with | X | 6 | |
| 9226807673 | males produce sperm with | X or Y | 7 | |
| 9226809140 | XX= | female | 8 | |
| 9226810920 | XY= | male | 9 | |
| 9226815465 | who determines sex of child | male because female can only give the X chromosome | 10 | |
| 9226816966 | body cells | (somatic cells) made through mitosis | 11 | |
| 9226819964 | diploid | cells in which the chromosomes occur in pairs (2n) "double" ex) skin, liver,heart cells | 12 | |
| 9226828639 | sex cells are called | gametes (egg and sperm) made through meiosis | 13 | |
| 9226833797 | haploid | cells that contain only 1 chromosome from each pair (n) | 14 | |
| 9227327693 | zygote | formed when egg and sperm unite | 15 | |
| 9227341617 | meiosis reduces what | genetic content | 16 | |
| 9227348899 | meiosis is the division of sex cells with 4 haploid/gametes because | it has 2 divisions called meiosis 1 and meiosis 2 | 17 | |
| 9227357246 | meiosis 1 interphase | DNA replicates | 18 | |
| 9227363296 | meiosis 1 prophase | homologous chromosomes join to form tetrads | 19 | |
| 9227375192 | crossing over (meiosis) DNA is swapped between chromosomes ins a ____ this is important because.... | pair, important because it provides genetic variation | 20 | |
| 9227416881 | meiosis 2- | occurs just like the stages of meiosis but no DNA replication | 21 | |
| 9227430294 | anaphase 1 | homologous chromosomes separate | 22 | |
| 9227433070 | anaphase 2 | sister chromatids separate | 23 | |
| 9227444404 | mitosis v meiosis (mitosis info) | occurs in most body (somatic) cells (asexual reproduction), 1 division, forms 2 daughter cells (haploid), identical to parent | 24 | |
| 9227455330 | meiosis v mitosis (meiosis info) | occurs only in sex cells (sexual reproduction), 2 divisions, forms 4 daughter cells (haploid) and is different from parent | 25 | |
| 9227465524 | spermatogenesis | 4 sperm cells | 26 | |
| 9227468889 | oogenesis | yields 1 egg cell, 2-3 polar bodies ( condensed area of nuclear material), conserves cytoplasm for egg | 27 | |
| 9227491075 | stage of mitosis that DNA replicates | interphase (S) | 28 | |
| 9227495558 | chromosomes appear as a jumbled mess like spaghetti | interphase | 29 | |
| 9227497629 | cytokinesis | splitting of cytoplasm | 30 | |
| 9227500459 | cytokinesis occurs at the end of this phase | telophase | 31 | |
| 9227503110 | cell grows and carries out normal cell activities | interphase (G1) | 32 | |
| 9227506234 | chromosomes line up in the middle of the cell | metaphase | 33 | |
| 9227510881 | 2 distinct daughter cells are formed | telophase | 34 | |
| 9227517273 | sister chromatids move apart towards opposite ends of the cell | anaphase | 35 | |
| 9227519112 | nuclear membrane breaks down | prophase | 36 | |
| 9229660958 | Chromosomes become visible | Prophase | 37 | |
| 9229660959 | Spindle fibers disappear and nucleus reappears | Telophase | 38 | |
| 9229660960 | shortest phase of mitosis | anaphase | 39 | |
| 9229660961 | Longest phase of mitosis | Prophase | 40 | |
| 9229660962 | Longest phase of cell division | Interphase | 41 | |
| 9229660963 | Interphase image |  | 42 | |
| 9241752210 | prophase image |  | 43 | |
| 9241755090 | metaphase image |  | 44 | |
| 9241758176 | draw anaphase |  | 45 | |
| 9241759752 | telophase image |  | 46 | |
| 9241763902 | cell cycle | sequence of growth and division of a cell | 47 | |
| 9241770312 | to make an exact copy of DNA | replicate | 48 | |
| 9241773251 | chromosomes are found here | nucleus | 49 | |
| 9241777665 | cell divisions resulting in 2 cells identical to the parent cell | mitosis | 50 | |
| 9241782736 | how DNA is packaged inside a cell (2 ways) | chromosomes (chromatin) | 51 | |
| 9241792206 | 4 reasons cells don't grow to be very large | 1) the DNA needs to meet the cells needs 2)repair and replacement if cell and cep growth 3)SA and V ratio needs to be even 4)diffusion needs to meet the cells needs | 52 | |
| 9241808837 | as a cell grows its ____ increases faster than its ______ | surface area, volume | 53 | |
| 9241817001 | if the sides of a cell doubles its SA increases ______ times and its volume increases ________ times | 4, 8 | 54 | |
| 9241848384 | cell cycle is controlled by | proteins and enzymes | 55 | |
| 9241853734 | uncontrolled cell division is caused by (3 reasons) | 1) failure to produce enzymes 2)overproduction of enzymes 3) production of enzymes at the wrong time | 56 | |
| 9241873317 | normal cells v cancer cells | normal cells exhibit "contacts inhibition" and stop dividing when they touch each other, cancer cells pile up on top of each other | 57 | |
| 9241883911 | tumor | masses of tissues caused by cancer, they deprive normal cells of nutrients | 58 | |
| 9241891563 | metastasis | cancer cells enter the blood stream and spread through out the body to other organs | 59 | |
| 9241904351 | the 2 types of causes of cancer | environmental factors and genetic factors | 60 | |
| 9241908987 | environmental causes of cancer (4 causes) | cigarette smoke, air and water pollution, UV radiation, viral infections | 61 | |
| 9241917021 | cancer can be prevented with | a healthy diet with high in fiber and low in fat with vitamins and minerals, exercise, avoiding bad decisions such as tobacco | 62 | |
| 9241977139 | UV radiation | the radiation photons harm the DNA molecules of living organisms. commonly, adjacent bases bond with each other instead of across the "ladder" which makes a budge and the distorted DNA molecule does not function properly | 63 |
