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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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- The human genome is found in which parts of the cell? a) nucleus b) Chloroplasts c) mitochondira d) nucleus and mitochondriaWhich of the following best describes the difference between interphase and mitosis? a) During interphase, DNA has a loose structure that condenses during mitosis. b) During interphase, histones help compact DNA into chromosomes. And once mitosis starts, histones are destroyed. c) During interphase, DNA is tightly packed into chromosomes that uncoil once mitosis starts. d) During interphase, DNA is packed as chromosomes. And during mitosis, DNA is called chromatin. Please I need a surely answer and a quicker responseWhich statement is false? a) Mitochondria carry DNA in the form of a closed circle. b) Chloroplasts carry DNA in the form of a closed circle. c) A nucleus can possess DNA in the form of a linear chromosome. d) The nucleoid region carries DNA in the form of a closed circle. e) None of the above statements is false.
- Which of the following is NOT true about mitochondria and chloroplast proteins? A. Proteins of both organelles are unfolded as they are transported. B. The proteins have N-terminal signal peptides C. The proteins need a proteins translocator D. The proteins remain unfolded once they cross the membranes E. Most of the proteins are encoded by nuclear genomeAt prophase, a cell has____________chromosomes, ______________chromatids,and ________________molecules of DNAAll of the following are located in the cytoplasm except: (choose one only) a) chloroplast b) nucleolus c) rough endoplasmic reticulum d) mitochondria e) lysosome
- According to the theory of endosymbiosis, organelles, like mitochondria and chloroplasts, were once free-living cells that were absorbed into another cell. The relationship benefited both cells to stay together. What evidence do scientists observe today that supports the theory of endosymbiosis? Select all that apply. a There are ribosomes found inside mitochondria and chloroplasts just like there are inside cells. b Looking inside mitochondria and chloroplasts, one will find that they each contain their own DNA. c Mitochondria and chloroplasts are found inside all cell types. d Mitochondria and chloroplasts each have a membrane around them just like a cell would.Some cells in your body frequently divide, while others in your body rarely, if ever, divide. a. What type of cell frequently divides? b. What type of cell infrequently divides? c. How would the two cells differ in their interphase?concerning the nucleus of human cells, which of the following is true? a.all human cell have nuclei b.all nuclei have a double nuclear membrane c.the chromosomes in nuclei are composed of dna and rna d.the nucleus controls most cellular activities e.chromosomes direct structural protein construction inside the nucleus
- The majority of adenosine triphosphate (ATP) needed by the cell is produced by thea. nucleus. b. chloroplasts. c. mitochondria.d. ribosomes.Chose one of A,B,C or D Genes are carried on ______________. a centromeres b golgi apparatus c chromosomes d ribosomesWhich is not true of Eukaryotic cells? A) A true nucleus contains DNA in the form of chromosomes B) Eukaryotic cells contain membrane-bounded compartments or organelles C) Their Dna employs a nucleoid area to produce proteins D) Thye all contain mitochondria E) They contain specialized organelles in the cytoplasm Explain why