Question 7 CELL CYCLE G1 G2 GO e In the cell cycle, wher DNA replication is completed, the cell proceeds directly into O cytokinesis. O M. G2- O G1. O prophase. PRINECOMA3 I DDINEC potx 2s
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Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
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- Need answers of following questions plz help. 27. The drug cytochalasin B3 blisks the polymentation of actin muroims Which of the following events of the cell cycle in animal cells would be mod dertly dispued by cytochalasim B? A spindle famation B. spindle attachment to kinetochores C movement of chromosomes to the poles during anaphase. D cleavage furrow formation and kinesis 28. Which of the following pairs of molerades make up an MP A a growth factor and misotic facti B. ATP synthetase and a protease C. cyclin and tubulin D. cyclin and a cyclin-dependent kinase 29. Which of the following statements best describes what would happen if MPF (maationing factor) is introduced imo intature fiog oocytes that are arrested in Ci A. The cells would remain arrested in 0₂ B. The cells would enter Go C. The cells would enter milis D. The cells would begin DNA synthesis 30, If all chromosomes are not attached to the mitotic spinitie at the M pluse checkpot, the cells would most likely be…I need help with a biology question, thanks Match the following: Chromosomes are visible under the microscope during __________. Replication of the DNA occurs in the _____________ phase of the cell cycle. Preparations for genome separation are made in the __________ phase. The first part of Interphase Two daughter cells are formed paired with............... (Cytokinesis, S-synthesis phase, G1-gap one phase, G2-gap two phase, M-mitosis)please help me answer these 2 questions po in not more than 20 words po. Thank you What will happen to an organism once its cells failed to undergo the process of 1A. Mitosis? __________________________ 1B. Meiosis? _________________________
- Need answer of 4,5,6. Shortly plz 4.If the most basic function of the cell cycle is to duplicate accurately the DNA in the chromosomes and then distribute the copies precisely to the daughter cells, why are there gaps between S phase and M phase? 5. Describe the molecular mechanism of a CDK activation. 6. What is the cyclin-CDK complex in the M phase of the cell cycle?please help me answer these 3 questions. thank you! 1. at what stage of mitosis can be the kind and number of chromosomes be easily detected and determined? Justify. 2. List at least 3 significance of mitosis 3. How many chromosomes are there in each stage of mitosis in onion and in animal like Drosophila?Please answer fast and all question other wise I will give downvote. QUESTION 1 Why is cancer a disease of old age ? A. Older DNA is more easily damaged B. There are fewer stem cells to repair tissue in older people C. DNA mutations accumulate with age QUESTION 2 The frequency of this molecular change in cancer cells makes it readily detectable by liquid biopsy. A. Point mutations B. Gene amplification C. DNA methylation D. PSA antigen QUESTION 3 Can surgery (with conventional chemotherapy if necessary) ever cure cancer? A. Yes, but typically only when cancer is detected at an early stage B. No, it simply prolongs life, usually by a few months C. Yes, even advanced cancer can frequently be cured by chemotherapy D. Only when it is combined with a targeted therapy
- Please help me to answer this question thank you! (Multiple choice) Select the correct answer 1. The function of mitosis is? a. To distribute the cell's DNA equally between the daughters b. To divide the cytoplasm equally between the daughter cells c. To distribute the parent cell's organelles evenly d. All of the given e. None of the give 2. The chromosomes of daughter cells formed during mitosis a. Are double the number of those in the parent cell b. Are identical to the chromosomes of the other daughter c. Are half the number of those in the parent cell d. b & c e. All 3. Which of these cells is likely to have been formed using mitosis? a. Skin cell b. Sperm cell c. Egg cell d. Heart muscle cell e. a & d 4. A certain stain colors DNA violet. When stained, which of these should appear violet? a. Chromatin b. Chromosomes c. Chromatids d. a & b e. All of the given 5. Two DNA molecules, joined at a centromere, have coiled to form tiny bodies.…QUESTION 38 What occurs during metaphase phase of mitosis? A. Microtubules can be lengthened by adding subunits at the + end to move chromosomes towards the metaphase plate B. Microtubules can be shortened to move chromosomes towards the metaphase plate. C. Motor proteins pull chromosomes along the microtubules to move them towards the metaphase plate. D. All of the above E. None of the aboveanswer all Directions: Read each statement carefully. Choose the letter of the correct answer. Write your answer on your answer sheet. _____1. In this type of cell division, the nucleus of the cell divides into two (2) nuclei with identical genetic material. What type of cell division is this? a. Meiosis c. Cell Cycle b. Mitosis d. Interphase _____2. In what stage of the cell cycle does DNA replication occurs? a. M-Phase c. Growth or Gap 1 b. Synthesis d. Growth or Gap 2 _____3. What type of cell division is used to produce sex cells, such as egg and sperm cells? a. Meiosis c. Cell Cycle b. Mitosis d. Interphase _____4. Which of the following events happen during Interphase? a. Cytokinesis c. DNA Replication b. Spindle formation d. Alignment of Chromosomes _____5. What is the correct sequence of the phases of Mitosis? a. Prophase → Metaphase → Telophase → Anaphase b. Prophase → Anaphase → Metaphase → Telophase c. Prophase → Metaphase → Anaphase → Telophase…
- Question 49 The scientist(s) who showed that DNA contained equal amount of certain nitrogen bases (i.e., A=T and C=G) is (are): Question 50 The cell that starts meiosis I is: haploid diploid a somatic cell a gamete Question 51 What is “silent” mutation? Question 52 Where does mitosis occur within this figure? (see letters in boxes) A B C D C and D Question 53 What form of chromosome abnormality is shown in the following Figure? Question 54 What type of mutation causes Sickle cell anemia? Question 55 The order of nucleotide bases on two sides of a DNA double-helix is Identical Similar Complemetary Nonidentical Question 56 What types of mutations are NOT passed to future generations? Question 57 What enzyme copies DNA into RNA? Question 58 Meiotic cell division replicates a cell's DNA ____________ and then divides ______________ twice; twice. once; once. None of the answer choices are correct. twice; once. once; twice. Question 59 ____ divide during meiosis I, while…QUESTION 5 Which of the following statements are correct about cellular karotypes and cancer (select all that apply)? A. Chromosomal translocation are only observed in hematopoietic cell tumors and not solid tumors B. Chromosomal translocations occur at similar similar frequencies in all tumor types C. Changes in chromosome number in cancer cells are often caused by mis-segregation o chromosomes during cell division D. Cancer cells alway have the same number of chromosomes as normal cells E. A cancer cell that has no observed chromosomal instability likely has extensive mutations and/or microsatellite instabilityTay-Sachs disease is a genetic disorder that results in the destruction of neurons due to a buildup of sphingolipids in the cells. Which organelle is malfunctioning in Tay-Sachs? lysosome endoplasmic reticulum peroxisome mitochondria