Target -2018 MHT - CET 2018 Biology / Code-44 Solutions

RAO IIT ACADEMY / MHT - CET 2018 / Biology / Code-44 / Solutions

Target -2018 MHT - CET 2018 Biology / Code-44

Solutions

Date: 10 May 2018

1.

Di�iculty : Easy

Topics :

REPRODUCTION IN PLANTS,

Cambium is essential for gra�ing in plants because cambia which consists of meristematic cells of stock and scion fusetogether.

Rao IIT Academy Website : www.raoiit.com1

2.

Di�iculty : Di�icult

Topics :

Biology,

Topic : Biochemistry of a cell

Hyaluronic acid is a hetropolysaccharide. It is made up of glucuronic acid and N-acetyl-D-glucosamine disaccharide units.

3. Di�iculty : Di�icult

Topics :

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION ,

'Pusa Sadabahar' is resistance to disease leaf curl and chilli mosaic virus of chilli. Himgiri of wheat is resistance to leaf andstripe rust.

4. Di�iculty : Easy

Topics :

Plant-Water Relations,MINERAL NUTRITION ,

The adsorption of water by hydrophilic compounds like cellulose and pectin in root hair cell wall is called Imbibition.


7.

Di�iculty : Medium

Topics :

RESPIRATION ,

Oxidative phosphorylation in eukaryotes occurs during respiration (Glycolysis). In oxidative pay o� phase of glycolysis in whichPGAL undergoes oxidation and phosphorylation.

8.


Topics :

Biology,

Topic : Genetic basis of inheritance

Snapdragon is an example of incomplete dominance.

9.

Di�iculty : Easy

Topics :

Biology,

Topic : Gene : It's nature and expression

histone is present in the linker region. In the nucleosome, two molecules of each of and arepresent to form octamer.

10.

Di�iculty : Medium

Topics :


GTB - Std.12th - Page no. 100


5.


Topics :

RESPIRATION ,

During Kreb's cycle, oxalosuccinate is converted into -ketoglutarate by oxidative decarboxylation.

6.

Di�iculty : Easy

Topics :


Double fertilization in angiosperms was first discovered by S.G. Nawaschin in Lillium plants.



Topics :


In angiosperms, secondary nucleus and egg cell is formed from haploid nucleus of functional megaspore which undergoesthree successive free-nuclear mitotic division out of which one nucleus from either of the pole come to the center and thenfunctions as polar nuclei. So, secondary nucleus is a sister nucleus of the egg.


Topics :

Biology,

In Mirabilis jalapa, incomplete dominance is seen. So all hybrid obtained will be 100% pink.


Topics :

BIOTECHNOLOGY AND ITS APPLICATIONS ,

DNA technology restriction endonuclease enzyme is used for cleaving DNA molecule.


Topics :

Organism and Its Environment,

The Chipka movement started in the early 1970s in the Garhwal of Uttarakhand with growing awareness towards rapiddeforestation.

16. Di�iculty : Medium

Topics :

PLANT GROWTH AND DEVELOPMENT ,

GTB - Std.11th - Page no. 92, 93, 94

Cytokinins delays the onset of senescence by application of cytokinins.


11.


Topics :


GTB - Std.12th - Page no. 41



Topics :

Biology,

Topic : Genetic basis of inheritance

In a person su�ereing from sickle cell anaemia the R.B.C's become half moon shaped.


Topics :

RESPIRATION ,

Respiration is very important process for survival of the living organisms as it oxidizes respiratory subtrate and energy isreleased in the form of ATP which is required for all metabolic activities.


Topics :

Biology,

Topic : Gene : It's nature and expression

In eukaryotes, initial codon on m-RNA is AUG. During translation, t-RNA, anticodons are exactly complementary to m-RNA.Hence anticodon will be UAC.


Topics :


Biopatent is granted for biological entities by government authority of a country.


Topics :


The exine of pollen grain is made up of sporopollenin.




Topics :

Plant-Water Relations,MINERAL NUTRITION ,

Continuous upward flow of water stream in tall tree is maintained due to cohesive force between molecules andtranspiration pull.


Topics :


GTB - Std.12th - Page no. 37 & 38


Topics :

Photosynthesis,

Algae used for the discovery of path of carbon in dark reaction were chlorella and scenedesmus.


Topics :

Diversity in the living organism,

Desmid, Dinoflagellate and Diatom are the plant - like protist. Slime mould is fungi - like protist.


Topics :

RESPIRATION ,

In case of anaerobic respiration, the RQ is always infinity.


Topics :


GTB std. XII Pg. No. 98.




Topics :

MICROBES IN HUMAN WELFARE ,

Monomers are converted into organic acids by acidogenic bacteria.


Topics :

Photosynthesis,

A part of phgotosynthetically fixed goes back to the atmosphere due to photoresrpiration.


Topics :

Biology,

Topic : Gene: It's nature and inheritance

'i' gene (Regulatory gene) transcribes a repressor mRNA when glucose is the normal energy source in bacterial cell.


Topics :


Double fertilization is the characteristic feature of angiosperms.


Topics :

MICROBES IN HUMAN WELFARE ,

The BOD of e�luent decreases a�er secondary treatment as bacteria decompose most of the organic matter in the e�luents.


Topics :

PLANT GROWTH AND DEVELOPMENT ,

Hypogeal germination is a type of seed germination in which epicotyl region of embryo elongates rapidly and brings theplumule above the soil surface.




Topics :

Biology,

Topic : Genetic Basis of Inheritance

Di�erent genotypes obtained

The genotypic ratio is


Topics :


Global warming causes melting of glacier, change in rainfall pattern and increase in sea level.


Topics :

Photosynthesis,

In cyclic photophosphorylation, formation of ATP occurs between

Cytochrome Cytochrome f

Ferredoxin Cytochrome


Topics :


A�er pollination, 2 celled pollen grain is deposited on stigma surface and it undergoes germination. When generative cellundergoes mitosis only once for formation of 2 male gametes.


Topics :


Angiospermae is not a category. Angiospermae is a division of Angiosperms.



39.Di�iculty : Easy

Topics :

Biology,

Topic : Genetic basis of Inheritance

Mendel obtained pure lines by selfing yellow round seeds as female parent and green wrinkled as male parent for 3generations.


Topics :


The enzyme Taq polymerase used in PCR technique is obtained from Thermus acquaticus.


Topics :


Vegetative propagation results on production of gentically similar plants as this is a type of sexual reproduction.


Topics :


Virus is NOT active outside the host body.


Topics :

Photosynthesis,

NADP is the hydrogen acceptor during light reaction.




Topics :

Biology,

Topic : Gene it's nature and expression

This is central Dogma for protein synthesis.


Topics :

RESPIRATION ,

38 ATP molecules are produced during breakdown of glucose molecule.


Topics :


A stem tuber has many notches on its surface called 'eyes'. Each 'eye' is actually at a node and constant of one or more smallaxillary buds and reduced scale leaves.


Topics :


Ozone layer in stratosphere is provides protection from UV rays while ozone layer in trophosphere is also known as bad ozonebecause it is harmful to breathe and it damages crops trees and other vegetation. And it also harmful for animals.


Topics :

Biology,

Topic : Biochemistry of a cell

Steroids are characterised by carbon atom arranged in four inter-locking rings.




Topics :

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION ,

Chl-a and Chl-b shown maximum absorption in Blue, violet and red regions of visible light.


Topics :


Explant used for the production of disease free plants is apical meristem.


Topics :

Zoology,Organism and Its Environment,

Sacculina and crab show parasitism. It is an intra specific interaction in which one of the species (parasite) is benefited whilethe other one (host) is harmed.


Topics :

Zoology,CIRCULATION,

Coronary sinus - (iv)

Base of systemic aorta - (iii)

Le� atrioventricular valve - (i)

Opening of inferior vena cava - (ii)


Topics :


Density increases when birth rate (Natality) and Immigration (inflow of population) increases.




Topics :

Zoology,

Topic - Chromosomal Basis of Inheritance

Linkage groups in a species correspond to its haploid number. In honeybees, total chromosomes

Linkage groups

Haploid no. of chromosome in honeybee


Topics :

Zoology,Excretion and osmoregulation,

Erythropoietin is produced in the kidneys and plays a key role in production of RBC's.


Topics :

Botany,RESPIRATION ,

Co-enzymes of Electron Transport Chain in mitochondria are cytochromes, dehydrogenases, flavoproteins


Topics :

Zoology,HUMAN REPRODUCTION,

In second trimester, the hormone levels stabilizes as HCG declines. Corpus luteum deteriorates and placenta completely takesover the production of progesterone which maintains the pregnancy.




Topics :

Zoology,Origin of Life,

Its fossil was invented by J.K. Fuhlort on Neanderthal valley, Germany.

C.C = 1450 mL

These were heavily built & short.


Topics :

Zoology,CONTROL AND COORDINATION,

Ventrolateral walls of cerebrum is corpora striata.


Topics :

Zoology,

Topic - Human respiration

Carbon monoxide combines with haemoglobin and forms Carboxyhaemoglobin.

Hb. has more a�inity for CO than for oxygen.


Topics :

Zoology,Health and Disease,

X is antigen binding site. Antigen combines with the antibody at this site in a lock and key manner.




Topics :



Topics :

Zoology,

Topic - Genetic Engineering

Dr. Lalji Singh obtained radioactive DNA probe from Y chromosome of female banded krait.


Topics :


Zoological parks are ex-situ conservation of biodiversity.


Topics :

Zoology,Animal Tissue,

Unicellular glands are single celled secretory cells. Goblet & mucous cells are major example of unicellular glands in humans.




Topics :


Ovary shows cyclic changes during menstrual cycle. Cortical region shows di�erent stages of development of ovarian folliclesor Graafian follicles. Each follicle has many layers of follicle cells. The follicle cells of a maturing follicle secrete estrogen.


Topics :

Zoology,

Topic - Chromosoma Basis of inheritance

-Human females are XX and hence they show double dose of X chromosome.

-Sex linked traits appear more frequently in males and females are carriers.

-Colour blindness is due to improper formation of cones (colour sensitive cells).

-Drone bees are infertile males.


Topics :


Myocardial infarction is commonly known as heart attack. It occurs when blood flow decreases or stops to a part of the heartcausing damage to heart muscle.


Topics :


Molecular evolution and origin of Earth was observed in Archeozoic Era.




Topics :


X is adrenal Medulla. It secretes two hormones known as adrenaline (epinephrine) and noradrenaline (nor epinephrine). Theseare together known as Catecholamines.

71.Di�iculty : Medium

Topics :

Zoology,

Topic - Organisation of Cells

Chloroplast is plastid for Photosynthesis.

Leucoplast is plastid for storage of starch, lipids & proteins.


Topics :

Zoology,

Topic - Chromosomal basis of inheritance

Klinefelter's syndrome has 44A + XXY one extra X-chromosome is present.


Topics :

Zoology,

Topic- Organisation of cell

Microvilli

Golgi apparatus


Topics :


Parasympathetic ganglia are located on the side of visceral organs like heart, kidney etc.




Topics :

Zoology,

Topic- Human Nutrition

Succus entericus contains Sucrase, Maltase, Dipeptidase


Topics :

Zoology,

Topic - Human respiration

Adam's apple is Larynx (Sound Box)

More prominent in Males


Topics :


Tunica interna is the innermost layer


Topics :


FSH is Folicle Stimulating Hormone brings about maturation of graafian follicle.


Topics :


A child a�er attack of measles develops Natural Acquired active Immunity.

Natural Acquired active Immunity is the immunity acquired due to infection




Topics :


Darwin observed a variety of Finches in Galapagos Islands


Topics :

Zoology,

Topic - Human Nutrition

Marasmus is prolonged protein energy malnutrition. Atrophy of digestive glands & intestinal mucosa is seen due to whichabsorption of food stops. There is no oedema seen in Marasmus, oedema is a characteristic of kwashiorkor


Topics :


Dryopitheus is not a connecting link

Archeopteryx is connecting link between birds & Reptils

Ichthyostegia is connecting link between Fish & Amphibian

Seymouria is connecting link between Amphobians & Reptils


Topics :


Oogonia arise form the endoderm of the yolk sac and migrate to ovaries during embryonic development


Topics :

Zoology,

Topic - Human Nutrition

Lacteals absorb Fatty acids and glycerol




Topics :

Biology,

Blood is filtered from Glomerulus. In the given diagram 'N' is the Glomerulus. L-A�erent arteriole, M-e�erent arteriole. O-Neckof Bowman's capsule.


Topics :


There are several types of kidney stones based on type of crystals of which they consist. The majority are calcium oxaletestones, followed by calcium phsophate stones


Topics :


In each testis, there are 200 - 300 lobules. In each lobule there are 1-4 convoluted loops called seminiferous tubules.


Topics :

Zoology,

Topic - Genetic ENgineering & Genomics

DNA fingerprinting is not based on fingerprints of individual


Topics :

Zoology,

Topic - Animal Husbandry

Lac is used in the manufacture of Toys, Polish, Ink etc.




Topics :


Spiders, Scorpions, Penguins excrete mostly guanine and hence are called guanotelic


Topics :


Epithelial tissue lacks blood vessels and hence is an avascular tissue


Topics :

Zoology,

Topic - Genetic Engineering & Genomics

Transgenic animals would be useful as bioreactors to produce important proteins such as - antitrypsin. This is used totreat emphysema


Topics :


Level of progesterone reaches its maximum in the Secretory phase


Topics :

Zoology,

Topic - Genetic Engineering & Genomics

Mice are most succesfully produced transgenic animals due to short generation time



95.

Di�iculty : Easy

Topics :


Pneumatic bones and le� sided ovary is characteristic feature of Aerial adaptation

96.

Di�iculty : Easy

Topics :

Zoology,Kingdom Animalia,

Regeneration as a type of Asexual Reproduction observed in Planaria


Topics :


Arbor vitae is seen in grey cortex of cerebellum

98.

Di�iculty : Easy

Topics :


Two adjacent Haversian systems are connected by Volkmann's canal

99.


Topics :

Zoology,

Topic - Animal Husbandry

Cirrhina is fresh water fish



Topics :


Heroin is extracted from Papaver Somniferum

Documents

Target -2018 MHT - CET 2018 Biology / Code-44 Solutions