Question

64. Which organelle has its own genetic information? a. endoplasmic reticulum b. ribosome c. mitochondrion d. golgi apparatus e. lysosome 65. Which organelle is a series of interconnected membranous canals or channels that run throughout the cytoplasm of the cell? a. golgi apparatus b. peroxisome c. mitochondrion d. endoplasmic reticulum 66. Which organelle is a composed of a double membrane structure with the inner membrane folded to form cristae? a. Lysosome b. endoplasmic reticulum c. mitochondrion d. ribosome 67. How many pairs of chromosomes does a typical human cell have? a. eight b. twelve c. eighteen d. twenty-three e. twenty-six 68. A change that occurs in the nucleotide sequence of DNA as a result of exposure to radiation is known as: a. replication b. translation c. transcription d. mutation 69. The material between the nuclear membrane and the plasma membrane is the: a. nucleoplasm b. cytoplasm 70. By what process does a cell copy its DNA before it divides? a. replication b. translation c. germination d. transcription 71. During transcription an mRNA molecule is formed: a. that is identical to part of a single strand of DNA b. that is complementary to both strands of DNA c. that is double stranded d. inside the nucleus 72. What molecules carry instructions for protein synthesis? a. DNA and RNA b. amino acids c. lipids and carbohydrates d. enzymes 73. What process is being shown in the diagram? a. replication b. translation c. transcription d. mutation

Answer 1

649) which organeile has its own genetic information 9 Answer - C mitochon drion * The Cell organelles lnce mitochondria and chloroplouts howe I their own DNA. mich Organelle is Channels that run a series of inter Connected membranowy through out the cytoplum of Cello Arower -D. Endoplasmic Reticulum 66) which organelle is composed of a double membrane Structure with the inner membrane folded to form Cristae 9. Answer - C. mitochondrion * The mitochondria of cell Consists of double folded Cristae. This is used for increasing Swface area of inner membrane of mitochondria. 67) How many pairs of Chromosomes does a typical ceu have ? Answer D. Twenty three * two In those 23 pairs 22 pairs are autosomes and remaining are Sex Chromoses X and y