7. Explain
the structural properties of DNA
and the
role of DNA in
heredity
passing of traits to offspring
and
protein synthesis
production of protein
8. Assessment
Diagram and explain the role of DNA in heredity :
DNA replication replicating DNA
and protein synthesis
which includes
producing mRNA from
transcription DNA
translation making protein using tRNA
and ribosomes (rRNA)
9. Explain
Mendel's laws of heredity
• the Law of Segregation and
• the Law of Independent Assortment
The Law of Segregation states that the members of each pair of
alleles separate when gametes are formed. A gamete will receive
one allele or the other.
The Law of Independent assortment states that two or more pairs
of alleles segregate independently of one another during
gamete formation.
And how can the laws
can be used to
determine the traits of
possible offspring
14. DNA / Nucleus / Gene / Chromosomes / Protein
use these words in two sentences
nucleus chromosomes
In the ________ there are _____________ that are
made of ________________ acid. (aka (DNA))
Deoxyribonucleic
A section of DNA that codes for a protein is called a
gene
_______.
15. products
substrate
enzyme
activator
Enzymes
__________ are proteins that control
chemical reactions
_________ ___________.
16. Nucleotides
Nucleic Acids
are made of these
DNA RNA
They consist of 3 molecules bonded together
a phosphate group
a sugar,
and a nitrogenous base
17. DNA has 4 types of nitrogenous bases
A T G C
• Adenine (A) and
• Thymine (T)
• Guanine (G) and
• Cytosine (C)
20. What are the 3 steps of DNA
replication
1 DNA unzips - enzyme breaks hydrogen bonds between bases
2. Bases pair
3. Bases bond
21. protein / polymer / amino acid
– write as sentence
polymers
Proteins are ___________composed of strands of
amino acids
40 or more ___________
22. 3 ways RNA differs from DNA
RNA is
• 1) single stranded (DNA is _________stranded)
double
• 2) has ribose sugar (DNA has ____________)
deoxyribose
Thymine
• 3) contains uracil (U) (DNA has __________ (T))
nucleic acid
nucleic acid
27. Sections of gene that are expressed
Exons
Sections of a gene that are NOT expressed
Introns
Not expressed
expressed
28. codon / base / amino acid
base
• A group of three nitrogenous _____s in
amino
a gene that code for an ______ acid is
codon
called a ______
29. protein
Amino
Translation tRNA
acid
After transcription, mRNA rRNA
goes to the ribosome
and begins a process
which converts mRNA mRNA
code into a protein
36. 6
nucleus
In the ________ there are _____________ that are
made of ________________ acid. (aka (DNA))
Deoxyribonucleic
A section of DNA that codes for a protein is called a
_______.
38. 8
The two kinds of
nucleic acids,
DNA and RNA
are made of these
They consist of 3 molecules bonded together
a phosphate group
a sugar,
and a nitrogenous base
44. 14
The two kinds of
nucleic acids,
DNA and RNA
are made of these
They consist of 3 molecules bonded together
a phosphate group
a sugar,
and a nitrogenous base
45. codon / base / amino acid
base
• A group of three nitrogenous _____s in
amino
a gene that code for an ______ acid is
15
called a ______
46. protein
Amino
16 tRNA
acid
rRNA
A process which
converts mRNA
into a protein mRNA