Alpha 1 anti-trypsin deficiency is an autosomal recessive genetic disorder. What are the chances that any of the offspring do not express the disease phenotype if both parents are genotype (Aa)?
1.100 per cent
2.75Â per cent
3.50Â per cent
4.25Â per cent
Amongst honey bees; the workers are:
1. Female
2.Male
3.Both females and males
4.Hermaphrodite
Apis dorsata is used to refer to
1.Little bee
2.Indian bee
3. European bee
4.Rock bee
 In animals; Grass tetany is caused due to deficiency of
1.Silicon
2.Sodium
3.Magnesium
4.Selenium
 In comparison with humans; the erythrocytes in frogs are
1.nucleated along with the presence of haemoglobin
2.no nucleus but with haemoglobin
3.few and very much small
4.nucleated and without haemoglobin
 In the bodies of complex animals; the most widely distributed and abundant tissue is
1.Neural
2.Muscular
3.Connective
4. Epithelium
 The honey bee is of greatest use to mankind as:
1. It is of medicinal benefits
2.Helps in cross-pollination
3. We get honey from them
4.None of these
 This structure tends to vanish always during meiosis and mitosis
1.Plastids
2.Plasma membrane
3.Nucleolus and nuclear membrane
4.All of these
Balbiani rings are found in
1.Heterosome
2.Lampbrush chromosome
3.Autosome
4.Polytene chromsome
Centrosome duplication takes place in this phase
1.S phase
2.G1 phase
3.G0 phase
4. M phase
Cystic fibrosis is an autosomal recessive genetic disorder. What are the chances that the child would have the disease if any one of the parent (either mother or father)is a carrier of the faulty cystic fibrosis gene (Cc)?
1.100Â per cent
2.50Â per cent
3.25Â per cent
4.0Â per cent
If the father in a family has a disease while the mother is normal; the daughters only are inherited by this disease and not the sons. Name this type of disease?
1.Autosomal recessive
2. Autosomal dominant
3.Sex-linked recessive
4.Sex-linked dominant
In humans; bipolar neurons are found in
1. Spinal cord
2. Brain
3. Olfactory epithelium
4.Embryonic phases
Individual chromosomes become distinct through a light microscope during this mitotic stage
1.Prometaphase
2.Prophase
3.Anaphase
4.Metaphase
 Mostly; the flesh of fruit is made of
1.Collenchyma
2.Parenchyma
3.Meristem
4.Schlerids
Lactose found in milk is a disaccharide composed of
1.Glucose and glucose
2.Glucose and fructose
3.Maltose and glucose
4.Galactose and glucose
Parenchyma cells in the spongy mesophyll exhibit large intercellular spaces promoting:
1.To become nutrients for the future germinating embryo
2. Greater exposure to carbon dioxide
3. To distribute pressure evenly through the structure
4.No specific reason
Polenske value of milk is due to
1.Fats
2. Water-soluble fatty acids
3.Water-insoluble fatty acids
4.Proteins
Prosenchyma is a type of
1.Chlorenchyma
2.Collenchyma
3.Sclerenchyma
4.Parenchyma
Sperms are stored in which part of the reproductive system in male cockroaches
1.Mushroom glands
2.Seminal vesicles
3.Testes
4.Vas deferens
Strip cup is used
1.Just after milking
2.Just before milking
3.At the middle of milking
4.Anytime during milking
The best stage at which the total number of chromosomes can be counted in any species is
1. Telophase
2.Metaphase
3. Late anaphase
4.Late prophase
The characteristic of this stage of mitosis is the separation of the sister chromatids
1.Telophase
2.Metaphase
3.Prometaphase
4.Anaphase
The chemical nature of Estrogen is
1. Amino acid
2. Protein
3. Fatty acid
4. Steroid
The division of cytoplasm is known as
1.Mitosis
2.Synapsis
3. Cytokinesis
4.Karyokinesis
The first cloned sheep ‘Dolly’ was created through which of these techniques?
1.Nuclear transfer
2.Gene transfer
3.Germinal cell transfer
4.Somatic cell transfer
The generic name of which of these is Apis?
1.Fish
2. Honey bee
3.Lac insect
4. Prawn
The large amoeboid cells found in areolar tissue and are also part of our innate immune system are known as:
1.Mast cells
2.Macrophages
3.Adipocytes
4.Fibroblasts
The lightest body weighed goat is
1. Beetal
2. Barbari
3.Jamnapari
4.Toggenburg
The main purpose that the aerenchyma serves in Parenchyma is
1.Offers flexibility
2.Renders Buoyancy
3.Provides structural framework
4.Provides mechanical support
The mode of inheritance for the trait – Fragile X syndrome is________.
1. X linked dominant
2.X linked recessive
3.Autosomal dominant
4.Autosomal recessive
The role of the gap junction is to
1.separate two cells from each other
2.Prevent substances from leaking across a tissue
3.Carry out cementing to keep adjacent cells together
4.Enable communication between adjoining cells by connecting the cytoplasm for quick ion transfer; small molecules and some large molecules
The stage in which chromosomes align on the equator of spindle fiber is
1.Telophase
2.Anaphase
3.Metaphase
4.Prophase
The tissue that provides maximum mechanical strength to the plant is
1.Xylem
2.Phloem
3.Parenchyma
4.Collenchyma
The tissue where cells are thin-walled; living; isodiametric along with intercellular spaces is
1.Arenchyma
2.Prosenchyma
3.Collenchyma
4.Parenchyma
The __________ checkpoint is also known as restriction point
1.G1 checkpoint
2.G2 checkpoint
3.M checkpoint
4.None of these
This about Periplaneta americana is incorrect
1.Mosaic vision
2. Excretion by structures – malphigian tubules
3.Paurometabolous development
4.Hemolymph delivers oxygen to tissues
This condition is necessary for a cell to qualify through the G2 checkpoint
1.Cell should be of a size sufficient enough
2.Complete and accurate DNA replication
3.Sufficient stockpile of nucleotides
4. Complete attachment of mitotic spindle fibers to kinetochores
This method is carried out for the castration of male pigs
1.Burdizzo
2. Hot iron
3.Knife
4.Elastrator
This statement about epithelial tissue is incorrect
1.epithelial cells rest on a cellular basement membrane splitting it from underlying connective tissues
2.covers the external body surface and the internal surface of some organs
3.adjacent cells are held by cell junctions with very little extracellular material
4.No blood vessels that supply nutrients to the epithelial cells
This structure has dense irregular connective tissue
1.Cartilage
2. Ligaments
3.Tendons
4.Skin
Vessels are found in
1.Most of the angiosperms and few gymnosperms
2.All angiosperms and some gymnosperms
3.All angiosperms; all gymnosperms and some pteridophytes
4.All pteridophytes
What are the glands referred to as when secretary granules leave cells by exocytosis with no loss of other cellular material
1. Merocrine
2.Holocrine
3. Autocrine
4.Apocrine
What will be the condition of the progeny if the father is normal; while the mother has one gene for haemophilia and one gene for colour blindness on one of the X chromosomes?
1. Only daughters are haemophilic and colour blind
2. Both sons and daughters will be haemophilic and colour blind
3.50 per cent haemophilic and colour blind sons and 50% normal sons
4.50 per cent haemophilic colour blind daughters and 50% colour blind daughters
Which of the following disorder is also called the Royal disease?
1. Colour blindness
2.Haemophilia
3.Sickle cell anaemia
4.Alzheimer’s disease
Which of the following disorder is an example of point mutation?
1.Sickle cell anaemia
2.Down’s syndrome
3.Night blindness
4.Thalassemia
Which of the following genotypes and phenotypes in a man may be the correct result of aneuploidy in sex chromosomes?
1.22 pairs + Y females
2. 22 pairs + XY females
3. 22 pairs + XXY females
4.22 pairs + XXXY females
Which of the following is a trait of X-linked recessive?
1.Albinism
2.Haemophilia
3.Huntington’s disease
4.None of these
Which of the following is a type of autosomal recessive genetic disorder?
1. Haemophilia
2.Skeletal dysplasia
3. Sickle cell anaemia
4.None of the above
Which of this is not a function that Parenchyma performs
1. Stores nutrients and food
2.Aids in regeneration; healing and repairs wounds
3.Provides foundation and support
4. None of these