3(b)Inheritance Flashcards
1
Q
3.14
Genome
A
Is the entire DNA of an organism and is a
section of a molecule of DNA that codes for a specific protein
2
Q
3.14
Gene
A
Is a
section of a molecule of DNA that codes for a specific protein
3
Q
3.15
understand that the nucleus of a cell contains chromosomes on which genes are
located
A
4
Q
3.16B
DNA molecule
A
Two strands coiled to form a double helix, the
strands being linked by a series of paired bases: adenine (A) with thymine
(T), and cytosine (C) with guanine (G)
5
Q
3.17B
RNA molecule
A
Single stranded and contains uracil (U)
instead of thymine (T)
6
Q
3.18B
Transcription
A
- DNA contains the genetic code and this is used as a template for the synthesis of mRNA.
- A complementary strand of mRNA is formed.
- The mRNA leaves the nucleus and enters the cytoplasm.
7
Q
3.18B
Translation
A
- Here a ribosome binds to the mRNA and translation begins.
- The ribosome reads the code/codon, matching tRNA anticodons in sequence.
- Each tRNA carries its unique amino acid. The sequence of codons defines the sequence of amino acids.
- The amino acids are joined by the ribosome, using peptide bonds, to form a protein/polypeptide.
8
Q
3.18B
Role of mRNA
A