A foetus’ determination of gender is dependent on
1.mother’s age
2.father’s health
3.egg’s nature
4.sperm’s nature
 If a boy has sexual characters of that of a girl, its genotype would be
1.XYY
2.XO
3.XXY
4.XXX
 In EMP pathway, the process by which ATP is formed from ADP is
1.reduction
2.oxidative phosphorylation
3. substrate-level phosphorylation
4.photo phosphorylation
 This number of Barr bodies are found in a female with XXXX chromosomes
1.Four
2.Three
3.Two
4.One
 This structure is absent in frogs and present in man
1.thyroid gland
2. adrenal gland
3.salivary gland
4. pancreas
In an entity with genetic composition AA+XXY such as Drosophila will be a normal female. In the case of mammals, it will be?
1. Turner
2.Klinefelter
3.Normal female
4.Normal male
In erythrocytes, the EMP pathway or glycolysis produces pyruvate which is metabolized further to
1.haemoglobin
2.ethanol
3.lactate
4.CO2
In humans, this pair of food constituents arrive at the stomach in a state of complete indigestion
1.Starch and protein
2. Fat and starch
3.Cellulose and protein
4.Cellulose and fat
In the last step of the EMP pathway or glycolysis, this substrate is used
1.Phosphoenolpyruvate
2.Pyruvate
3.1, 3-bisphosphoglycerate
4.Glyceraldehyde 3-phosphate
In this plant, sex determination was first studied
1.Mirabilis
2.Melandrium
3.Datura
4.Rumex
Minimum peristalsis takes place in
1.Oesophagus
2. Duodenum
3.Rectum
4.Stomach
Pick the incorrect statement
1.cephalic phase of gastric secretion does not involve the release of gastrin
2.contraction of pyloric sphincter is caused due to large doses of gastrin
3.deficiency of intrinsic factor causes pernicious anaemia
4.gastric peristalsis includes propulsive grinding and mixing movements
The activity of this enzyme increases when the ATP supply of a cell depletes
1.Glucokinase
2. Phosphofructokinase-1
3.Hexokinase
4.Pyruvate kinase
Theory of linkage was put forward by
1. De Vries
2.Sutton
3.Bateson and Punnet
4.Morgan
This enzyme catalyzes the first step of glycolysis or the EMP pathway
1.Glucokinase
2. Pyruvate kinase
3.Phosphofructokinase-1
4.Hexokinase
This hormone facilitates the secretion of HCl from the stomach
1.somatomedin
2.secretin
3.gastrin
4.renin
This is incorrect about vitamins
1.tocopherol is anti-sterility vitamin
2.vitamins are indispensable for life
3.vitamins act as a source of energy
4.vitamins are organic catalysts
This is most likely to happen if parietal cells of the gut epithelium turn partially non-functional
1.Steapsin turns all the more effective
2.pH of the stomach will sharply decline
3.Efficiency of pancreatic enzymes will reduce particularly of lipase and trypsin
4.Inadequate hydrolysis of pepsin into peptones and proteoses
This is not one of the steps between the glycolysis of glyceraldehyde 3-phosphate and 3-phosphoglycerate
1.formation of 1,3-bisphosphoglycerate
2. oxidation of NADH to NAD+
3. ATP synthesis
4.catalysis by phosphoglycerate kinase
This macromineral is essential for the synthesis of insulin
1.magnesium
2.chlorine
3. iodine
4.sulphur
This prevents keratinization of the skin
1.Vitamin D
2. Vitamin C
3.Vitamin B
4.Vitamin A
This regulates the peristalsis of the intestine
1.Brachial plexus
2.Sacral plexus
3.Auerbach’s plexus
4. Discoidal plexus
This technique can be used to detect the chromosomal abnormality of an unborn baby
1. Tissue culture
2.Ultrasound
3.CAT Scanning
4.Amniocentesis
When yeasts carry out alcoholic fermentation of glucose, the coenzyme – thiamine pyrophosphate is needed by
1.transaldolase
2.pyruvate decarboxylase
3. lactate dehydrogenase
4.hexokinase
________ discovered XY sex chromosomes
1.M J D White
2.Nettil Stevans
3.R Brown
4.Mendel