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- 8) What makes a liver cell a liver cell and not a brain cell? A) The fact that it is found in an organ known as the liver B) The cells next to the liver cell dictate its identity C) The specific genes that the liver cell contains D) The specific genes that the liver cell expresses 7) The membranes of mictochondria, chloroplasts, and bacteria do all of the following except A) Pump ions against concentration gradients B) Generate ATP C) Generate chemical gradients D) Catalyze the reaction of the krebs cycleThe human genome is found in which parts of the cell? a) nucleus b) Chloroplasts c) mitochondira d) nucleus and mitochondria1) What is the size of the following single-stranded piece of DNA? ATCGTGTGCT A) 10 b B) 20 bp C) 20 b 2) Mitosis is to cytokinesis as Meiosis is to: A) Cell plate B) Interkinesis C) Metaphase-1 3) During cell division, DNA synthesis and replication does not take place at the beginning of: A) Mitosis B) Meiosis-II 4) What is the size of the following single-stranded piece of RNA? AUCGUGUGCU A) 10 bp B) 10 b| C) 20 bp
- YOU DON'T NEED TO EXPLAIN THESE QUESTIONS JUST PROVIDE ANSWER DNA separates during ____ of mitosis. a)Prophase b)Telophase c)Metaphase d)Interphase e)Anaphase 2. What separates during mitosis? a)Single DNA strands b)Cytoplasm c)Sister chromatids d)Telomeres e)Homologous chromosomes 3. Oncogenes are associated with cancer because they Oncogenes are associated with cancer because they (select one answer) Cause cells to initiate a death pathway Fail to put a “brake” on the cell cycle Push cells through the cell cycle Divert cells into G0 phase Slow down the cell cycleWhat would most likely happen if the NLS signal sequence was removed from a protein that still contained a mitochondrial localization sequence and an SRP signal sequence? a) The protein would localize to the nucleus b) The protein would be retained in the ER c) The protein would localize to the mitochondria d) The protein would remain in the cytoplasm e) The protein would be secreted from the cellYou homogenize liver cells and isolate vesicles derived from the endoplasmic reticulum. When their biochemistry is analyzed, they are found to contain oxygenases. a) From what type of ER are they derived from? b) Briefly explain the function of the ER they belongs to? c) What is the function of oxygenases?
- Which 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.What is the final result of mitosis in a human A) nearly genetically identical 2n somatic cells B) genetically different 2n somatic cells C) nearly genetically identical 1n somatic cells D) genetically identical 2n gamete cells Which of the following statements is TRUE? A) A single, replicated chromosome with sister chromatids has two centromeres. B) A single, unreplicated chromosome has two DNA molecules. C) Sister chromatids from a single chromosome are connected at the centromere. D) Homologous chromosomes are connected at the centromere. The first gap in the cell cycle (G1) corresponds to _____. A) normal growth and cell function B) the phase in which DNA is being replicated C) the beginning of mitosis D) the phase between DNA replication and the M phase In a diploid cell from a specific species has 5 chromosome pairs, how many sister chromatids will be found in a nucleus at prophase of mitosis? (Draw it!) A) 5 B) 10 C) 20 D) 40 Consider a cell from the species above.…1) A human cell containing 22 autosomes and a Y chromosome is A) a sperm. B) an egg. C) a zygote. D) a somatic cell of a male. E) a somatic cell of a female.
- Metabolic and developmental functions in a Paramecium are regulated by genes contained in the… A) ... extrachromosomal DNA. B) … micronucleus and macronucleus. C) … macronucleus. D) … micronucleus.The process of [ Select ] [a)meiosis, b)transcription, c)RNA synthesis, d)translation] ends when [ Select ] [a)acetyl transferase, b)RNA polymerase, c)DNA polymerase, d)ribosome] finishes copying the [ Select ] [a)rRNA, b)mRNA, c)DNA, d)tRNA] from the [ Select ] [a)mRNA, b)DNA, c)tRNA, d)rRNA], and the [mRNA] leaves the [ Select ] [a)cytoplasm, b)mitochondrion, c)nucleus, d)ribosome]. The process of [ Select ] [a)transcription, b)translation, c)meiosis, d)RNA synthesis] begins when a [ Select ] [a)cytoplasm, b)mitochondrion, c)ribosome, d)nucleus] attaches to the [mRNA] that just entered the [ Select ] [a)mitochondrion, b)ribosome, c)cytoplasm, d)nucleus].Explain why E is the correct choice. Various types of stem cells that develop from the mesoderm are involved in processes by which all cells of the protostomes and Deuterostomes obtain or regulate ions, molecules, or monomers (nutrients). Therefore, these cells will perform which of the following processes? a) Osmosis, b) active transport, c) facilitated diffusion, d) exocytosis, e) all are correct.