Exercise - Amar Ujala

Principles of inheritance and 11.12.13.14.15.BiologyThe degree by which progeny differ from their parents is known asa. Geneticsc. Heredityb. Variationd. InheritanceSahiwal cows of Punjab are developed bya. Artificial selectionc. Both (a) and (b)b. Domesticationd. MutationWhich of the following genotype represents heterozygous condition?a. TTc. Ttb. ttd. RRHow many true breeding pea plant varieties were selected by Mendel?a. 14c. 21b. 7d. 2Mendel selected Pisum sativum for hybridization experiments because ofa. Clear contrasting characters and short life spanb. Long life span and non-fertile hybridsc. Presence of unisexual flowersd. Infertile hybrids and production of large number of seeds by each plantMark the odd one (w.r.t. dominant trait in garden pea)a. Yellow podc. Axial flowerb. Inflated podd. Yellow seedTransmission of genetic characters from parents to offspring isa. Variationc. Blendingb. Heredityd. SomatoplasmWho coined the term ‘allele’?a. Saundersc. Johannsenb. Batesond. MendelWhich of the following trait of garden pea is present on 7th chromosome?a. Pod shapec. Seed shapeb. Pod colord. Stem heightAll traits can express themselves in heterozygous condition, excepta. Tallc. Axialb. Violetd. Wrinkled seedThe phenotype of F1 hybrid resembles either of the two parents ina. Dominancec. Co-dominanceb. Incomplete dominanced. Intermediate inheritanceMendel proposed law of dominance and law of segregation based on his observations ona. Monohybrid crossesc. Test crossesb. Dihybrid crossesd. Out crossesWhich of the following phenotypic ratio was found by Mendel in F2 generation of a dihybrid cross?a. 3:1c. 9:3:3:1b. 1:2:1:2:4:2:1:2:1d. 12:4Both phenotypic and genotypic ratio of F2 are same ina. Co-dominancec. Out crossb. Incomplete dominanced. More than one option is correctThe ability of a gene to have multiple phenotypic effects is known asa. Pleiotropyb. Co-dominance1.(b), 2.(c), 3.(c), 4.(a), 5.(a), 6.(a), 7.(b), 8.(b), 9.(c), 10.(d), 11.(a), 12.(a), 13.(c), 14.(d), 15.(a), 16.(c), 17.(c)DPP-9

Principles of inheritance and variationExercisec. Incomplete dominanced. Complete dominance16. How many types of gametes can be produced by a diploid organism, if it is heterozygous for 3 loci?a. 6c. 8b. 4d. 317. What will be genotypic ratio in the F2 generation of a monohybrid out cross?a. 9:3:3:1d. 3:1b. 1:2:1c. 1:11.(b), 2.(c), 3.(c), 4.(a), 5.(a), 6.(a), 7.(b), 8.(b), 9.(c), 10.(d), 11.(a), 12.(a), 13.(c), 14.(d), 15.(a), 16.(c), 17.(c)

Principles of inheritance and variationExercise18. A cross between F1 hybrid and its homozygous recessive parent is calleda. Out crossc. Monohybrid crossb. Test crossd. Dihybrid cross19. Select the correct option w.r.t. law of independent assortmenta. It can be explained by using monohybrid crossb. Inheritance of one character is dependent on another characterc. This law is not applicable universallyd. It was proposed by Bateson20. Find the incorrect matcha. Gamete: Pure for a traitb. Co-dominance: Flower color in Snapdragonc. Recessive gene: Expressed in homozygousd. Incomplete dominance : Carl Correns21. Select the odd one out w.r.t. non-allelic gene interactionsa. Epistasisc. Incomplete dominanceb. Duplicate genesd. Complementary genes22. Fruit color in Cucurbita pepo is an example ofa. Complementary genesc. Dominant epistasisb. Duplicate genesd. Polymeric genes23. Complementary genes were demonstrated by Bateson and Punnet ina. Capsellac. Antirrhinumb. Lathyrus odoratusd. Mirabilis24. If dominant alleles of two gene loci produce the same phenotype whether inherit separately or together,it will bea. Recessive epistasisc. Duplicate genes interactionb. Dominant epistasisd. Inhibitory genes interaction25. A gene which hides the action of another gene is termed asa. Co-dominant genec. Hypostatic geneb. Epistasis gened. Lethal gene26. In polymeric gene action, the modified dihybrid phenotypic ratio in F2 generation isa. 9:3:3:1c. 9:6:1b. 13:3d. 12:3:427. Which of the following genotype of sweet pea plant is related with the production of purple coloredflower?a. CcPpc. ccPPb. CCppd. Ccpp28. Select the odd one out w.r.t. polygenic inheritancea. Bell-shaped curve is obtainedd. Intermediate phenotypes are moreb. Also called quantitative inheritancefrequentc. Recessive alleles show cumulative effect29. Select the correct match (w.r.t. dihybrid phenotypic ratio is F2 generation)a. Recessive epistasis:12:3:1b. Dominant epistasis:9:3:4c. Collaborative gene:9:3:3:1d. Duplicate genes:9:730. Skin color in man is controlled bya. Three pairs of polygenesc. Six pairs of polygenesb. Duplicate genesd. Supplementary genes31. Select the odd one w.r.t. chromosomal theory of inheritancea. It was proposed by Sutton and Boverib. Behavior of chromosomes in parallel of genesc. Chromosomes and genes occur in pairs in diploid and haploid cells respectivelyd. The paired condition of both chromosomes as well as Meridellian factors is restored duringfertilization32. The term gene for Mendelian factor was coined by18.(b), 19.(c), 20.(b), 21.(c),22.(c), 23.(b), 24.(c), 25.(b), 26.(c), 27.(a), 28.(c), 29.(c), 30.(a), 31.(c)

Principles of inheritance and 44.45.46.a. Sutton and Boveric. Batesonb. Morgand. JohannsenMorgan used Drosophila as experimental material becausea. It cannot be reared and bred under lab conditionsb. A single mating produces very few offspringsc. It has high number of morphologically similar chromosomesd. It has a short life spanWho carried out several dihybrid crosses in Drosophila to study genes that were sex-linked?a. Morganc. Batesonb. Suttond. PunnetFemale Drosophila isa. Smaller in size than maleb. Larger in size than malec. Larger in size with shorter life span than maled. Having heteromorphic sex chromosomesFind the odd one out w.r.t. complete linkagea. 100% parental combinations in F2 generationb. F2 phenotypic ratio is 3:1 in dihybrid crossc. Dihybrid test cross ratio is 1:1 in F2 generationd. Linked genes tend to separate frequentlyA condition where an individual heterozygous for two pairs of linked genes (AaBb) possesses the twodominant genes on one homologous chromosome pair and two recessive on the other, it is said to bea. Cis-arrangementc. Partly cis partly transb. Trans-arrangementd. More than one option is correctHow many linkage groups are present in human male?a. 24c. 46b. 23d. 22What is the recombination percentage between gene y and w in Drosophila?a. 1.3%c. 62.8%b. 98.7%d. 37.2%Find the incorrect statement w.r.t. chromosomal mappinga. Crossing over is important in locating genes on chromosomeb. Recombination frequency depends upon the distance between the genesc. Recombination frequency is inversely proportional to distance between genesd. The sequences and the relative distances between various genes is graphically represented in termsof recombination frequenciesIndividuals having homomorphic sex-chromosomes producea. One type of gametesc. No gametesb. Two type of gametesd. Only on gamete in complete lifeHolandric genes are present ona. X-chromosomesc. Sex-chromosomes as well as autosomesb. Y-chromosomesd. AutosomesMark the incorrect pair (w.r.t. sex determination)a. ZW-ZZ type- Fishesb. ZO-ZZ type- Birdsc. XX-XO type- Dioscoread. XX-YY type- Melandrium50% sperms are devoid of sex-chromosomes ina. Melandriumc. Grasshopperb. Mothd. BeeIn the XX-XO type of sex determinationa. Females produce only one type of eggsc. Males have two X-chromosomesb. Females have only one X-chromosomesd. Males are homogameticSelect the odd one out w.r.t. genic balance theory of sex-determination in Drosophilaa. Y-chromosome plays no role in sex-determination32.(d), 33.(d), 34.(a), 35(b), 36.(d), 37.(a), 38.(a), 39.(a), 40.(c), 41.(a), 42.(b), 43.(b), 44.(c), 45.(a)

Principles of inheritance and 58.59.60.b. Given by C.B. Bridgesc. If X/A ratio is one, superfemales are producedd. If X/A ratio is less than 0.5, supermales are producedEnvironmental mechanism of sex-determination of sex-determination is seen ina. Bonneliac. Grasshopperb. Crepidulad. More than one option is correctSelect the odd one out w.r.t. harmophiliaa. X-linked dominant disorderc. Criss-cross inheritanceb. Bleeder’s diseased. X-linked recessive disorderSelect the correct matcha. Sex-limited trait Color blindnessb. Sex-limited trait Express in both sexesc. Sex-influenced trait More frequent in one sex than in the otherd. Sex-influenced trait Porcupine skinAll are sex limited traits, excepta. Beard in manc. Antlers in male deerb. Porcupine skind. Brilliant plumage in peacockMark the odd one (w.r.t. genomatic mutation)a. Hypoploidyc. Duplicationb. Tetrasomyd. AllopolyploidyFind the incorrect matcha. Somatic mutationNo evolutionaryb. Germinal mutationGametic mutationc. Frame shift mutationGibberish mutationd. Chromosomal mutation TransversionSubstitution of a purine with another type of purine is calleda. Transversionc. Inversionb. Transitiond. TranslocationInversion without involving the centromere is calleda. Paracentricc. Pericentricb. Monosomyd. TautomerizartionAneuploidy which results in loss of a complete homologous pair of chromosome isa. Trisomyc. Nullisomyb. Tetrasomyd. EuploidyWhich of the following chemical is a base analogue?a. 5-bromouracilc. Nitrous acidb. Acridinesd. HypoxanthineCytoplasmic male sterility in maize is due to defectivea. Mitochondriac. Golgi bodyb. Lysosomed. LeucoplastSelect the incorrect statement w.r.t. pedigree analysisa. Solid symbol shows the unaffected individualb. It is useful for genetic counselorsc. Proband is the person from which case history startsd. It is an analysis of traits in a several generations of a familyWhich of the following abnormalities is due to X-linked recessive mutation?a. Cystic fibrosisc. Klinerfelter’s syndromeb. Thalassaemiad. Lesch-Nyhan syndromeFind odd one (w.r.t. dominant traits in humans)a. Blue eyesb. Brown eyesc. Free ear lobesd. Myotonic dystrophy46.(c), 47.(d), 48.(a), 49(c), 50.(b), 51.(c), 52.(d), 53.(b), 54.(a), 55.(c), 56.(a), 57.(a), 58.(a), 59.(d), 60.(a)

Nov 20, 2020 · 18. A cross between F 1 hybrid and its homozygous recessive parent is called a. Out cross b. Test cross c. Monohybrid cross d. Dihybrid cross 19. Select the correct option w.r.t. law of independent assortment a. It can be explained by using monohybrid cross b. Inheritance of one character is dependent on another character c.