Question

1. what other diseases can be caused by disruptions to the cell cycle?

b.6 (b) cell specialization (s) 23-24

1. what is a stem cell? explain
2. why is cell differentiation important? explain

b.7 (a) components of dna / replication, transcription and translation (s) 25-37

1. nucleotides are the monomers (building blocks) of nucleic acids. what are the three parts of a nucleotide?

i.
ii.
iii.

1. what is the shape of the dna molecule?
2. complete the following chart.

compare by | dna | rna
nitrogen bases | |
type of sugar | |

of strands | |

where in the cell | |

1. what is the shape of the dna molecule?
2. define the following terms:

a replication
b transcription
c translation

1. describe the process of dna replication in 3 steps.

i
ii
iii

1. what breaks apart the hydrogen bonds between bases?
2. what is a codon?
3. during dna replication, a dna strand that has the bases: gcc att cat gga atc will produce a complementary dna strand with what sequence? write it out below.
4. write the complementary nucleotide sequence for the dna molecule below.

Explanation:

To solve question 33, we analyze the base - pairing rules in DNA. In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C).

Step 1: Analyze each segment of the given DNA strand

• For the first segment "GCC":
• G pairs with C, C pairs with G, and C pairs with G. So the complementary part for "GCC" is "CGG".
• For the second segment "ATT":
• A pairs with T, T pairs with A, and T pairs with A. So the complementary part for "ATT" is "TAA".
• For the third segment "CAT":
• C pairs with G, A pairs with T, and T pairs with A. So the complementary part for "CAT" is "GTA".
• For the fourth segment "GGA":
• G pairs with C, G pairs with C, and A pairs with T. So the complementary part for "GGA" is "CCT".
• For the fifth segment "ATC":
• A pairs with T, T pairs with A, and C pairs with G. So the complementary part for "ATC" is "TAG".

Step 2: Combine the complementary segments

By combining the complementary parts of each segment, we get the complementary DNA strand: CGG TAA GTA CCT TAG.

Answer:

The complementary DNA strand is CGG TAA GTA CCT TAG.