61. DNA replication begins at a specific location and proceeds bidirectionally a
ID: 269420 • Letter: 6
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 inner membrane, near the attachment site of the initial molecule. The above statements are true in A. Eukaryotes B. Prokaryotes c. Both D. None 62. Cell division is regulated by B. Tumor-suppressor gene E. A and c C. Oncogene A. Proto-oncogene D. A and b 63. A cell in prophase I of meiosis hasas much DNA as each of the daughter cells following cytokinesis of meiosis II. 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 usually a A. twice B. half C. one quarter D. four times A. microtubules B. intermediate filaments C. microfilaments A. True b. False such as a. insoluble molecules, actin filaments b. soluble molecule, growth hormones c. insoluble molecules, estrogen d. soluble molecules androgenExplanation / Answer
61. Answer is B,
DNA Replication is Bordirectional in All Organism, but Circular DNA is only present in Bacteria as in plasmid.
62. ANSWER IS D,
Explantion : protoonchogene are normal genes that are found in all normal cell that required to regulate the Cell Division if mutation occurs in ProtoOnchogene it converts into Onchogene that and cell fails to regulate Contact Inhibition Process that is necessory for normal cell division.
and Tumor Supressing Gene is Also is a Cell Division Regulator gene which also repairs the DNA.
63. D (Four Times)
Explantaion : nomally a cell (Diploid) when enters s phase of Cell Cycle, DNA replicates so that DNA Becomes FOUR TIMES because normally a cell CONATAINS DOUBLE DNA (Diplod) which on complition of Meiosis I this dna is divided equally on two cells, Means Double DNA in each cells, and on further Meiosis II TWO CELLS are Formed from Single Cell so that now each Cell now Posses Single Amount of DNA.
64. Microfilament like Tubulin are Largest (25nm) in Diameter and Microtublues like Actin are Smallest in Diameter (6nm).
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.