A man with blood group "A" marries a woman of blood group "B". Both are heterozygous. What is the off-springs having phenotype "O"
1.Zero
2.25%
3.50%
4.75%
Posted Date:-2021-09-30 05:33:16
A monohybrid cross yielded 3:1 in F2. What could be mode of inheritance?
1.Segregation
2.Independent assortment
3.Both of these
4.None of these
Posted Date:-2021-09-30 05:33:16
A pea plant with yellow seed was crossed to a plant having green seeds. What will happen in F1; if plants are true breeding
1.All seeds will be yellow
2.Half of seeds will be yellow
3.All the seeds will be green
4.Both will be present in ratio of 1:2:1
Posted Date:-2021-09-30 05:33:16
A pure breeding tall pea plant was crossed to dwarf plant what will be the frequency of dwarf plants in F1
1.0.25
2.0.5
3.0.75
4.0
Posted Date:-2021-09-30 05:33:16
A pure breeding tall plant was crossed to dwarf plant. What would be probability of "Tt" genotype in F2
1.0.25
2.0.5
3.0.75
4.0
Posted Date:-2021-09-30 05:33:16
Acetabularia crenulata has
1.Irregular shaped cap
2.Regular shaped cap
3.Irregular while young and regular while adult
4.No cap
Posted Date:-2021-09-30 05:33:16
Among invertebrates who possess great power of regeneration
1.Arthropods
2.Molluscs
3.Sponges
4.Nematodes
Posted Date:-2021-09-30 05:33:16
Baldness is most frequent in
1.Men
2.Women
3.Children
4.Girls
Posted Date:-2021-09-30 05:33:16
Cavity formed between somatic and splanchnic mesoderm is called
1.Gastrocoele
2.Blastocoele
3.Coelom
4.Neurocoele
Posted Date:-2021-09-30 05:33:16
Filial is a Latin word. It means
1.Spring
2.Issue
3.Progeny
4.Descendent
Posted Date:-2021-09-30 05:33:16
Growth is basically an increase in
1.Nuber of cells
2.Size of cells
3.Both of these
4.None of these
Posted Date:-2021-09-30 05:33:16
Growth of apical buds suppressing lower axillary buds is
1.Lateral dominance
2.Compensatory dominance
3.Apical dominance
4.Both a and b
Posted Date:-2021-09-30 05:33:16
Hemophilia is
1.Excessive bleeding due to defective gene on sex chromosome
2.Due to extra sex chromosome
3.Due to structural deviation during organogenesis
4.Due to nutritional deficiencies
Posted Date:-2021-09-30 05:33:16
How many genes control Rh blood group system?
1.One
2.Two
3.Three
4.Four
Posted Date:-2021-09-30 05:33:16
How many pairs of homologous chromosomes are present in Pisum sativum
1.Five pairs
2.Six pairs
3.Seven pairs
4.Eight pairs.
Posted Date:-2021-09-30 05:33:16
If a heterozygous individual shows the complete effect of both alleles, the type of inheritance would be
1.Complete dominance
2.Non dominance
3.Incomplete dominance
4.Co-Dominance
Posted Date:-2021-09-30 05:33:16
In chicks fertilization is
1.Internal
2.External
3.Both a and b
4.None of these
Posted Date:-2021-09-30 05:33:16
In nature, Garden pea is
1.Self-fertilized
2.Cross fertilized
3.Cross pollinated
4.None of these
Posted Date:-2021-09-30 05:33:16
In question number 2 what will be frequency of dwarf plant in F2
1.0.25
2.0.5
3.0.75
4.0
Posted Date:-2021-09-30 05:33:16
In which of the following cases, genotypic and phenotypic ratio will remain same in F2 generation
1.Law of independent assortment
2.Law of Segregation
3.Test cross
4.Incomplete dominance.
Posted Date:-2021-09-30 05:33:16
Incubation temperature for chick is
1.20-30 degree C
2.40-45 degree C
3.36-38 degree C
4.25-35 degree C
Posted Date:-2021-09-30 05:33:16
Inducer substances are produced by
1.Notochord
2.Somite
3.Archenteron
4.Coelom
Posted Date:-2021-09-30 05:33:16
Light duration plays a role in inducing or suppressing flowering, phenomenon is called
1.Photosynthesis
2.Photoperiodism
3.Phototropism
4.Photogenetics
Posted Date:-2021-09-30 05:33:16
Liver and pancreas arise from
1.Foregut
2.Midgut
3.Hindgut
4.None of these
Posted Date:-2021-09-30 05:33:16
Maximum optimum temperature for growth of plants is
1.30-40 degree C
2.25-30 degree C
3.10-20 degree C
4.20-40 degree C
Posted Date:-2021-09-30 05:33:16
Mechanism of development was explained by
1.Hans Dietrisch
2.Spemann
3.Both a and b
4.Haemmerling
Posted Date:-2021-09-30 05:33:16
Negative physiological changes in our body is called
1.Teratology
2.Aging
3.Regeneration
4.Embryonic induction
Posted Date:-2021-09-30 05:33:16
Peripheral part of blastoderm making contact with yolk is called
1.Area pellucida
2.Area opaca
3.Blastocoel
4.Area plana
Posted Date:-2021-09-30 05:33:16
Phenotype represents
1.Morphology
2.Physiology
3.Genetics
4.None of these
Posted Date:-2021-09-30 05:33:16
Root primordial develop from
1.Apical meristems
2.Intercalary meristems
3.Pericycle
4.Epidermis
Posted Date:-2021-09-30 05:33:16
Study of aging is
1.Teratology
2.Embryology
3.Gerontology
4.Pathology
Posted Date:-2021-09-30 05:33:16
The ability to regain or recover the lost or injured part of body is
1.Aging
2.Regeneration
3.Abnormal development
4.Primary induction
Posted Date:-2021-09-30 05:33:16
The gene which controls ABO group has how many alleles in an individual
1.One
2.Two
3.Three
4.Four.
Posted Date:-2021-09-30 05:33:16
The genes which do not follow law of independent assortment
1.Crossed genes
2.Linked genes
3.Recessive genes
4.Dominant genes
Posted Date:-2021-09-30 05:33:16
The German scientist Spemann worked on differentiation in
1.1924
2.1929
3.1915
4.1940
Posted Date:-2021-09-30 05:33:16
The position of a gene on chromosome is called
1.Habitat
2.Position
3.Locus
4.Location
Posted Date:-2021-09-30 05:33:16
The stage of rapid cell division just after fertilization is
1.Organogenesis
2.Cleavage
3.Gastrulation
4.Growth
Posted Date:-2021-09-30 05:33:16
The trait "Kernel colour in corn" in controlled by how many pairs of genes
1.One pair
2.Two pairs
3.Three pairs
4.Many pairs.
Posted Date:-2021-09-30 05:33:16
Vertebral column is formed from
1.Ectoderm
2.Endoderm
3.Mesoderm
4.None of these
Posted Date:-2021-09-30 05:33:16
What is the feature of cells in gastrulation?
1.Division
2.Migration
3.Differentiation
4.All of these
Posted Date:-2021-09-30 05:33:16
Which of the following characters of pea plant is dominant?
1.Axial flowers
2.Yellow pods
3.White flowers
4.Wrinkled seeds
Posted Date:-2021-09-30 05:33:16
Which of the following condition is hybrid
1.TT
2.Tt
3.tt
4.All of these
Posted Date:-2021-09-30 05:33:16
Which of the following is monohybrid cross
1.TT x tt
2.TTYy x Ttyy
3.Both of these
4.None of these
Posted Date:-2021-09-30 05:33:16
Which one is incorrect
1.Red light favours elongation of cells
2.Blue light retards cell enlargement
3.UV rays retards cell elongation
4.UV rays retard cell division
Posted Date:-2021-09-30 05:33:16
Which one is incorrect?
1.Epiblast is presumptive ectoderm and mesoderm
2.Hypoblast is presumptive endoderm
3.Hypoblast is presumptive mesoderm
4.Upper layer of cells in blastoderm is epiblast
Posted Date:-2021-09-30 05:33:16
Which statement is correct about gray crescent?
1.A pigmented area that appears at time of fertilization
2.A pigment free area that disappears at the time of fertilization
3.A hyperpigmented area that is present in the embryo
4.A pigment free area that appears at time of fertilization
Posted Date:-2021-09-30 05:33:16
Which statement is correct?
1.Ectodermal cells have effect on mesodermal cells to induce differentiation
2.Mesodermal cells stimulate ectodermal cells to form nervous system
3.Endodermal cells stimulate ectodermal cells
4.All are correct
Posted Date:-2021-09-30 05:33:16
Which statement is incorrect?
1.Fertilized egg of an ascidian contains cytoplasm of four colours
2.Yellow cytoplasm gives rise to gut
3.Grey equatorial cytoplasm gives rise to notochord.
4.Grey vegetal cytoplasm gives rise to gut
Posted Date:-2021-09-30 05:33:16
Which statement is incorrect?
1.Earthworm can regenerate its head
2.Salamander can regenerate its limbs
3.Lizard can regenerate its head
4.Man can regenerate his skin
Posted Date:-2021-09-30 05:33:16