- What type of bond holds the bases together in a DNA molecule
- What is the Enzyme that opens DNA and writes the strand of mRNA during transcription
- relationship between the length of the Poly A Tail and the longevity of the mRNA
- in a double stranded DNA molecule the ratio of (A to T) and (C to G)
- is fertilisation of sperms with ova random or not random
- Nucleotides can be joined together to form long chains of
- which two scientists first published the double helical model of DNA
- what holds the complementary strands of DNA together
- ribosomal rna - makes up bulk of RNA in a cell- a large molecule made up of thousands of nucleotides - folds into unique 3D conformation made up of many hairpin loops as a result of comp base pairing within rRNA molecule - rRNA binds with ribosomal proteins to form large + small ribosomal subunits during translation, ribosomal subunits assemble to form the ribosome - part of rRNA forms an enzyme known as peptidyl transferase (ribozymes), catalyses the formation of peptide bonds between amino acids during translation - rRNA helps to align mRNA in ribosome so anticodons of incoming aminoacyl-trna molecules can complementary base pair with mRNA codons - rRNA orientates aminoacl-trna in correct position within ribosomal binding sites (APE)
- a normal cell has ___ chromosomes but a reproductive cell has ____ chromosomes
- do you know how to use a test cross to determine the sex of an offspring from the gametes of the parents
- do you know how to draw a genetic diagram?
- do you know the symbols used in pedigree analysis
- when is a pure line produced (aka pure breeding/true breeding/breed true)
- what is the ideal number of offspring to obtain the smallest difference in observed ratio and expected ratio
- How many different types of tRNA molecules are there?
- ROLE OF RNA_______ ___ the ____________ encoded in DNA
- RNA MOLECULE1 ___________ ______, which gives rise to a ______-________ molecule
- RNA NUCLEOTIDEA RNA nucleotide consists of a _______ _____ (______), a ___________ ____ (adenine, guanine, cytosine, ______) & an inorganic _________ _____
- What is the sex determined by XX chromosomes