A pea with white flowers was crossed to another pea which is also white flower plant. What is the number of linkage group in this animal? The treated plant was then crossed with a homozygous tall pea. An example of the quantitative trait in man is a Hair colour b Colour of eye c Skin colour d Shape of nose. These two phage preparations were allowed to infect the culture of E. A polynucleotide chain A nitrogenous base is linked to pentose sugar with N-glycosidic linkage to form to form a nucleoside. Bacterium in which transformation was first studied is a Salmonella typhimurium b Streptococcus pneumoniae c Escherichia coli d Streptococcus aureus 10.
Operation of Lac operon is also under the control of positive regulation. The results in F2 are expected to be a All tall b Tall and dwarf in 3 : 1 ratio c 50% tall d All dwarf 11. Regulation of Gene Expression: All the genes are not needed constantly. Be Determined Towards Your Goal For Success attitude is equally as important as ability 7. The chromatin that is more densely packed and stains dark are called as Heterochromatin. Characters Leading strand Lagging strand 1.
Adenine and Thymine forms double hydrogen bond and Guanine and Cytosine forms triple hydrogen bonds. W hich of the following is an autoimunodisease a Haemophilia A b Type 1 Diabetes mellitus c Type 2 Diabetes mellitus d Sickle cell anaemia 10. Ratio of parental and recombinant phenotypes in a dihybrid cross would be a 8 : 8 b 6 : 10 c 10 : 6 d 9 : 7 19. If % age of cytosine is 18%, then %age of adenine will be a 32% b 34% c 36% d 23% 17. White eyed and long wind male drosophila was crossed to a vestigial winged red eyed female. The genes for the eye colour and size of the wing in drosophila are located on the same chromosome.
It has gotten 1136 views and also has 4. More nucleotide joins together to form polynucleotide. The reason is a Homozygous yellow cannot survive due to lethal effect of genes b Yellow mice are not very suitable to live c There is no formation of zygotes with homozygous yellow constitution d None of the above 6. Which of the following serves as a terminal codon? It has gotten 2769 views and also has 4. Which mendelian principle will not operate if two genes under study are close together a Paired unit factors b Dominace c Segregation d Independent assortment 20.
The entire chromosome is replicated. Exons are interrupted by introns. Functioning of structural genes is controlled by a Operator b Promoter c Ligase d Regulatory gene 31. A pure tall pea was crossed with a pure dwarf Pea. Be Determined Towards Your Goal For Success attitude is equally as important as ability 7. In a monohybrid cross the ratio of F2 true breeding dominant and true breeding recessive would be a 50 : 50 b 25 : 25 c 75 : 25 d 25 : 75 Answer Keys 1.
At the end release factors binds to the stop codon, terminating the translation and release of polypeptide form ribosome. Bacterium in which transformation was first studied is a Salmonella typhimurium b Streptococcus pneumoniae c Escherichia coli d Streptococcus aureus 10. The revision notes help you revise the whole chapter 6 in minutes. A double homozygous yellow round plant of Pea is crossed with green wrinkled plant. Which of the following dieses is sex linked? There are two types of strain of this bacteria, some produce smooth shiny colonies S and others produce rough colonies R. The codon is nearly universal. A tobacco plant heterozygous for albinism a recessive character is self pollinated and 1200 seeds are subsequently germinated.
Percentage of pure breeding F2 individuals of a monohybrid cross would be a 75% b 50% c 25% d 12. Operon system consists of a operator and regulator genes b operator, regulator, repressor genes c operator, regulator, repressor, structural and prom genes d none of the above 22. George Gamow suggested that genetic code should be combination of 3 nucleotides to code 20 amino acids. The Adenosine forms base pair with Uracil instead of Thymine. A colour blind son is born to a normal parents. Insertion and deletion of three or its multiple bases insert or delete one or multiple codons hence one or more amino acids and reading frame remain unaltered from that point onwards.
When selfed the F2 generation produced purple and white in the ratio 9 : 7. Properties of Genetic Material: a It should be able to generate its replica replication b It should chemically and structurally be stable. At which stage is the fate of genetic constitution of gametes finally decided? Lactose is the substrate for enzyme beta-galactosidase and it regulates switching on and off of the operon, so it is called inducer. At which stage is the fate of genetic constitution of gamets finally decided? Mutations and Genetic code A change of single base pair point mutation in the 6th position of Beta globin chain of Haemoglobin results due to the change of amino acid residue glutamate to valine. Bacterium in which transformation was first studied is a Salmonella typhimurium b Streptococcus pneumoniae c Escherichia coli d Streptococcus aureus 10. There are two types of nitrogenous bases — Purines Adenine and Guanine , and Pyrimidines Cytosine, Uracil and Thymine. A normal woman is married to a colour blind man.
Some amino acids are coded by more than one codon. Operon system consists of a operator and regulator genes b operator, regulator, repressor genes c operator, regulator, repressor, structural and prom genes d none of the above 22. Which one of the following character in man is controlled by a recessive gene? Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you. The law of segregation of characters is also called the law of purity of gametes because a Gametes have only one of the two alleles for each character b Gametes cannot be contaminated c Gametes are very different type of cell d It was just another name adopted accidentally. Which of the following inhibits protein synthesis by binding to 50 S ribosome a Tetracycline b Streptomycin c Erythromycin d Penicillin 37. When a yellow mouse was crossed to another Yellow House, the F1 generation produces yellow and brown black mice in the ratio 2: 1. Operon system consists of a operator and regulator genes b operator, regulator, repressor genes c operator, regulator, repressor, structural and prom genes d none of the above 22.
Gene i code for the repressor of the lac operon. Salient features of Genetic Code are- i. This must be due to the transfer of the genetic material. Then they transferred the E. Choose the answer showing the correct order of alphabets. Which of the following process would produce a genotypic ratio of 1:2:1 in F2? Actin binding sites are located on a Troponin b Tropomyosin c Meromyosin d Both tropomyosin and meromyosin e Both troponin and tropomyosin 42. Gene y code for permease, which increases permeability of the cell.