Two genes, A and B are known to be linked on the same chromosome with 12 recombi

Question

Two genes, A and B are known to be linked on the same chromosome with 12 recombination frequency between them. Both the dominant allelels are know to be link on the same chromosome and both the recessive allele (a, b) are located on the other homologue, which following is the correct expected frequency of the gametes produce by this individuals? a) 25 AB, 25 ab, 25 Ab, 25 aB B) 2AB, 12ab, 38aB, 38Ab C) 44AB, 44ab, 6aB 6Ab D) 6AB, 44 aB, 44 Ab If teeth length in a particular species is determined by a single gene with allelel A for long allele a for short then if the alleles exhibit co-dominate a Heterozygous dog would show what type of teeth? a) Some long and some short teeth b) all medium length teeth c) all miss happen teeth d) some individuals would show all long teeth while some individuals would show all short teeth. Which of following is false about F factors? a) It is necessary for transformed to occur b) it contain fertility genes c) it can exist a separate plasmid or integrate in to the main chromosome of cell to be Hfr cell d) H can transfer a whole new copy of itself to recipient bacterial cell by rolling circle replication. Which is false about PGR? a) It can take minute about of DNA, even from single cell and make trillions of copies of the DNA b) It utilize the translation process to make the polypeptides which is the end product and main purpose of PCR c) Its mimics the replication process d) Usually involves amplifying a specific of segment of genome define by the primers Which of the following process involves the uptake of need DNA and integration of a single strand into the host genome? a) transformation b) transduction c) conjugation d) plasmid Which is false about nucleosome? a) the nucleosome core is comprised of 147 base pairs DNA wrapped a round of histone protein b) HI histone and linear DNA exist between nucleosome cores c) The histones in the nucleosome core are H2A, H2B and H4. There are 2 of each histone type d) all the histone proteins are (-) charge Normal DNA sequence that codes for two adjacent codes along the length of an m RNA is follows like TGAGGA. Based on the wobble theory which following mutation in the DNA sequence would be least likely cause a) TTAGGA b) AGAGGA c) TGTGGA d) TGAAGA

Explanation / Answer

ANSWER:

1) 25AB,25Ab,25ab,25aB

2) Some individual would show long teeth, while some individual would show short teeth

3) It contain fertility genes

4) It can take minute about of DNA,even from single cell and make trillions of copies of the DNA

5) Transformation

6) The histone in the nucleosome core are H2A,H2B and H4.There are 2 of each histne type

7) AGAGGA

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