Question

40. Which of the following is true of the last stage of photosynthesis? a. Carbon dioxide is released b. ATP is formed c. NADH is formed d. glucose is formed by adding carbon dioxide to an organic compound in the cell e. none of the above is true 41. Which of the following is false if HCI (hydrochloric acid) is added to an al kaline solution? a. the pH drops b. the conce c. the solution becomes more alkaline ation of Hydrogen ions rises d. none the above is false e. all of the above are false 42. Which of the folliowing is false for mitosis? a diploid cells produce 2 identical copies b. sperm cells are made using this process C. Amoeba and Paramecium reproduce using this process d. animals grow using this process e. human skin cells are replaced by mitosis 43. Which of the following is false regarding meiosis? a. meiosis takes place in ovaries and testicles C. sperm, egg, and pollen are made using this process an d. the cells produced are identical e. in humans, cells produced by this process have 23 chromosomes b. four haploid cells are produced 44. Some organisms are able to reproduce without sex, making identical copies of themselves. What is the advantage of sexual reproduction compared with non-sexual reproduction? b. it involves less energy that non-sexual reproduction c. It produces non-identical offspring, so some are more likely to survive in varying environments a. it produces more offspring than non-sexual reproduction d. all the above e. none of the above 45. Which of the following is true of DNA? a. it is shaped like a twisted ladder c. the base pairs A and T are joined by hydrogen bonds, as are C and G d. the upright parts of the ladder are made of alternating sugars and phosphates e. all of the above b. it is a double hellix 46. Each individual carries 2 genetic factors (genes) for each characteristic, and these are separated when the sex cells are formed. This is the main theme of Mendel's a. principle of dominance C. principle of segregation e. spontaneous generation b. principle of independent assortment d. law of blending inheritance 47. When RR represents round seeds and r represent wrinkled seeds, what would the seeds look like in the F1 generation if these two parents were crossed? b. all wrinkled c. 3 wrinkled to 1 round a. all round d. 3 round to 1 wrinkled 48. What would the genetic make-up of the F2 offspring be if two F1 offspring from #47 were crossed? a. all round b. all wrinkled c. 3 wrinkled to 1 round d. 3 round to 1 wrinkled 48 (second part). Draw the Punnet Square for the cross in # 48.

Answer 1

40) d) glucose is formed by adding carbon dioxide to an organic compound in the cell.

At the end of photosynthesis, glucose and oxygen are the products.

41)d) none of the above.

42)a) a diploid cell produces two identical copies

At the end of mitosis, we get identical cells

43)d) the cells produced are identical

They are not identical since the cells produced are haploid.

44)c)it produces non identical offsprings,so some are more likely to survive in varying environment

45)e) all of the above.

46)b) principle of independent assortment.

47)a) all round.

Since all the seeds will be Rr and R is dominant over r, so all seeds will be round.

48)d) 3 round to one wrinkled

Since 1 will be RR, 2 will be Rr, and 1 will be rr.