1. Genes are:

2. The place Darwin visited on his trip around the world that had the greatest impact on his thinking was?

3. It is doubtful that many of the organic compounds essential for life, such as amino acids and nucleotides, would be able to assemble spontaneously in the presence of?

4. Repressor proteins:

5. Most carbon enters the web of life through?

6. DNA replication ocurs:

7. What is glycolysis?

8. What is paired in the bonding of nitrogeneous bases?

9. James Watson and Francis crick established?

10. Plants store their carbohydrates in the form of?

11. The following needs an anticodon to bind to the protein synthesizing machinery? DNA, mRNA, rRNA, or tRNA

12. What is formed when an atom loses or gains an electron?

13. Water is an example of a? aton, ion, compond, mixture, or element

14. A -COOH group is a ————– group? carboxyl, hydroxyl, amino, methyl, or Ketone

15. Which is a building block of carbohydrates?

16. An -NH2 group is a ———— group?

17. All sterols have?

18. Hydrophobic reactions of phospholipids may produce clusters of their fatty acid tails, which form?

19. Four of the five answers listed below are related by a unifying characteristic except? ionic bond, covalent bond, polar bond, hydrogen bond, or cluster of nonpolar groupd

20. The ability to acquire, store, transer, or utilize energy is called?

21. The nucleus of an atom contains?

22. A mutation is change in? homeostatis, the developmental pattern in an organism, metabolism, hereditary instructions, or the life cycle of an organism.

23. Which is not dound as a part of all cells? cell membrane, cell wall, eibosomes, DNA, or RNA

24. Which is a building block of carbohydrates?

25. Plant cuticles, which prevent much water loss, are primary made of? steroids, triglycerides, oils, waxes, or all of the these

26. The longest part of cell cycle is usually?

27. When fats are broken down as energy sources, their components enter?

28. Four of the five answers listed are participants in photosynthesis except? photoststem, chlorophyll, mitchondrion, or thylakoid

29. During electron transport phosphorylation, which ions accumulates in the outer compartment of the mitchondria? calcium, hydrogen, oxygen, phosphorous, or sodium

30. White blood cells use —— to get rid of foreign particles in the blood? simple diffusion, bulk flow, osmosis, phagocytosis, or facilitated diffission

31. The nuclear envelope begins to break up in late?

32. ATP contains? alanine, arginine, ribose, tyrosine, or glucose

33. Allosteric inhibition is generally a result of?

34. The spindle apparatus becomes visible during?

35. Histone-DNA units are called? polysomes, ribosomes, nucleosomes, chromocenters, or vesicles

36. Queen Victoria: was a carrier of hemophilia, had a hemophilic parent, had hemophilia, married a man with hemophilia, or both had a hemophilic parent and married a man with it

37. Which statement is true?

The hydrogen bonding of cytosine to guanione is an example of complementary base pairing,

Adenine always pairs up with guanine in DNA, and cytosine always teams up with thymine,

Each of the four nucleotides in a DNA molecule has the same nitrogen-containing base,

When adenine base pais with thymine, they are linked by three hydrogen bonds, or

In the DNA of all species, the amount of purines nevr equals the amount of pryimidines

38. Which two units combines in varoius ways to form lipids? amino acids and gluclose,

amino acids and glycerol, or glucose and fatty acids.

39. Amino acids are building blocks for?

40. The genetic code id made up of units containing of how many nucleotides?

41. In his experiments with plants, Mendel removed which part of the plant to prevent unwanted fertilization?

42. How many mature eggs are produced from a single initial oocyte?

43. Pleiotropic genes are?

44. males who tend to be taller than average and show mild mental retardation may be designated?

XXY, XYY, Turner syndrome, Down syndromes, or none of the above

45. A nucleotide may conatin a ?

46. Which of the following can affect whether transcription can occur? histones, DNA acetylation, DNA methylation, all of these, or none of these

47. transcription is?