61. DNA replication begins at a specific location and proceeds bidirectionally a

Question

61. DNA replication begins at a specific location and proceeds bidirectionally around the circle and the newly synthesized DNA molecule is also attached to the linner membrane, near the attachment site of the initial molecule. The above statements are true in A. Eukaryotes .Prokaryotes c.Both D. None 62. Cell division is regulated by gene C.Oncogene D. A and b E. A and c 63. A cell in prophase I of melosis has 1 as much DNA as each of the daughter cells following cytokinesis of meiosis 64. the cytoskeletal elements with the smallest diameter best characterized as 65. Signaling termination is is a critical point in onset of cancer 66. In paracrine signaling, the signal is esually ach as A. twice B. half C. one quarter D. four times A. microtubules B. intermediate Slaments C. microflaments A. True b. Fase a insolable molecules, actin filaments b. solable molecule, growth bormones insoluble molecules, estrogen d. solable molecules androgen 67. Jon channels aher the flow of ions across the plasma membrane and can be opesed in response to vohage changes across the membranes B. False ?.true 68. Which type of cell juncticn prevests the movemens of substances through the space betwen cells? B. adhereans D. hemidesmosomesE gap 69. Which one of the folliowing statements about integrins is correct? A. Integrins indiroctly connect milcrofilaments with the extracellalar matrix B. There is a single type of integrin, capable of binding to mutiple types of extracellular matris p C. Integrins are the primary eell adhesion molecale in a desmosome. D. Adjacent integrins create channels refened to as gap junctions. 70. The extracellelar matrix can inuence A cell movement. B C. gene expression D. All of these choices are correct cell shape _a_?posphate group and Phosphatases is-enzyme that 71, A kinase is an enzyme that A.Phospborylate, add B, add, remove C, remove, add D. digest, semove 72. In regards to following statements Statement 1: Many cancers arise when something goes wrong with the way a cell responds to a signal that leads to cell dvision or, in some cases, when a cell behaves as ilf it has received a signal for cell division when in fact it hasn't. Statement 2: Problems with cell signaling that can lead to cancer can take place at just about every step in the cell-signaling process B. 1 Is true but 2 is not A. Both are not true C Both are true D. 1 is not true but 2 is true

Explanation / Answer

please ask questions separately

61 B Prokaryotes. this description is that of a prokaryotic circular DNA. Eukaryotic DNA is linear

62D tumour supressor gene and protooncogene. Tumour supressor gene is the gene that controls cell division. mutations leads to carcinogenesis and uncontrolled cell growth. Proto oncogene is the gene involved in the promotion of cell division so its a signal for the start of cell division

63 A twice

this is because the cells at the end are haploid and starting out they are diploid.

64 c microfilaments

Related Questions

Navigate

• Browse (All)
• Browse 6
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.