BIOD 101
BIOD 101 Module 4 Portage Learning Exam
Questions with Correct Verified Answers
Latest Update (2025/2026) Guaranteed Pass
1. What is a base plus a deoxyribose called?: Nucleoside
2. What is a base plus deoxyribose plus a phosphate group
called?: Nucleotide
3. What is the complimentary pair for purine?: Pyrimidine
4. What is the complimentary pair for thymine?: Adenine
5. What is the complimentary pair for guanine?: Cytosine
6. What are complimentary pairs held together by?: Weak
hydrogen bonds
7. Within the helical structure, what are nitrogenous bases
said to be in?: -
Complimentary pairs
8. How do hydrogen bonds occur?: When 2 negatively
charged atoms share a hydrogen atom.
BIOD 101
, 9. How many hydrogen bonds are formed bonds when
adenine pairs with thymine?: 2 hydrogen bonds
10. How many hydrogen bonds are formed when guanine
pairs with cytosine?: 3 hydrogen bonds
11. What are nucleotides linked to?: A polynucleotide chain.
12. Polynucleotide chains are ordered in a what?: Sequence
13. What defines an entire organism?: Polynucleotide chains
in a unique sequence
14. Each strand or leg of the DNA ladder has what?: Polarity
15. What does polarity do?: Give directionality
16. How is polarity determined?: The direction the nucleotide
rungs are facing.
17. The 5' (five prime) end terminates what?: Phosphate
group
27 the 3' (three prime) strand terminates with what?: Hydroxyl
group
28. Strands are arranged in what way?: Antiparallel arrangement
,29. How are the strands in antiparallel arrangements oriented?:
One strand is in the 5'-3' orientation while the other strand is in the
3'-5' orientation.
30. What are entire sequences of paired bases called?: Genome
31. How much DNA is in a human cell: 2 meters (6.5 ft) worth
32. What is tightly coiled and packaged with DNA that is needed
for DNA replication?: Histone Proteins
33. What are DNA sequences and their associated proteins
called?: Chromatin 34. What are the structures chromatin
complexes are packed into?: Chromosomes
35. How many copies of a chromosome are there and where do
they come from?: 2 and from each parent
36. Where are chromosomes located at?: Within the nucleus of
somatic cells. 37. Describe somatic cells: All the body's cells except
gametes
38. What are gametes?: Sperm and egg cells.
, 39. How many chromosomes does a somatic cell have?: 46
chromosomes
40. Cellular division (mitosis) requires a high degree of
__________ to ensure
__________ are produced: Specificity, identical cellular duplicates
41. Describe the cell cycle.: Cycle of a parent cell replicating it's dna
and forming 2 daughter cells.
42. What are the 4 phases of the cell cycle?: Gap phase 1 (G1)
DNA Synthesis (S-phase)
Gap phase 2 (G2)
Mitotic phase (M-phase)
43. What are the two smaller phases of the M-phase?: Mitosis,
cytokinesis
44. What is mitosis in the m-phase classified as?: The division of
genetic material
45. What is cytokinesis in the m-phase classified as?: The division
of the cytoplasm.