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4.3 The cell and inheritance (DNA (Is located inside the nucleus, Has 2…
4.3 The cell and inheritance
DNA
Is located inside the nucleus
Has 2 strands
Nucleic acid
Condenses into chromosomes
Bases A,T,G,C
RNA
The making of protein
Can move throughout the cell
Nucleic acid
Has uracil ( U) base instead of thymine (T)
AU GC
Has only 1 strand
1903 Walter sutton
Studied grasshopper cells
Sex (sperm or egg) cells ------> 12 chromosomes
-he noticed when two sex cells
joined - called fertilization- the fertilized egg was back to 24 chromosomes
He realized that alleles (different forms of a gene) were carried on chromosomes
Comes in two different forms
Messenger RNA mRNA
Transfer RNA tRNA
4.4 protein synthesis
4.4 protein synthesis
Sutton gets credit for:
Genes are carried from parents to their offspring on chromosomes
Chromosomes theory of inheritance