Please be patient as the PDF generation may take upto a minute. (2024)

Target TestContact Number: 9667591930 / 8527521718

Biology

1.

Genes which code for a pair of contrasting traits or slightly different forms of the same gene are known as
1. Alleles
2. Loci
3. Cistrons
4. Introns

2.

Which of the following would not be a feature seen in a patient with the following karyotype ?

1. Many loops on finger tips
2. Congenital heart disease
3. Big and wrinkled tongue
4. Mucus clogging of airways

3.

The genotype of a plant showing the dominant phenotype can be determined by
(1) test cross
(2) dihybrid cross
(3) pedigree analysis
(4) back cross

4.

Recessive character is expressed in
(1) F0
(2) F1
(3) F2
(4) Never expressed.

5.

Which of the following symbols represent consanguineous mating?
(1)
(2)
(3)
(4)

6.

Which of the following disorder is associated with Queen Victoria?
(1) Sickle cell anaemia
(2) Haemophilia
(3) Huntington's Disease
(4) Myotonic dystrophy

7.

What is wrong with respect to sex determination in honey bee?
(1) Unfertilized egg develops as a male by means of parthenogenesis.
(2) Union of sperm and egg develops as a female
(3) All workers and males will have 16 chromosomes while queen will have 32 chromosomes.
(4) Males produce sperms by mitosis.

8.

The genes which are involved in alpha Thalassemia are---- and ----- while in beta thalassemia are----.
(1) HBA1, HBB, HBA2
(2) HBB1 HBB2 HBA
(3) HBB1 HBA HBB2
(4) HBA1 HBA2 HBB

9.

An individual affected with Turner’s Syndrome:
I. Is a female
II. Has 45 chromosomes
III. Has rudimentary ovaries
Of the above statements, the correct statements are:
1. Only I and II 2. Only I and III
3. Only II and III 4. I, II and III

10.

Which of the following contraceptive methods involve the role of hormones?

11.

Which of the following was not a character studied by Mendel in garden pea?
1. Flower position
2. Pod shape
3. Flower colour
4. Pod position

12.

Occasionally, a single gene may express more than one effect. The phenomenon is called:

13.

The ultimate source of allelic variation is:

14.

All generations in Mendel’s Experiments were produced by self pollination except:

15.

A person with Down syndrome will show all the given symptoms except
1. Many loops on finger tips.
2. Flat back of head
3. Big and wrinkled tongue
4. Narrow round face

16.

Contraceptive pills are highly effective because
a. They inhibit ovulation
b.They inhibit implantation
c. They alter the quality of cervical mucus to slow down the entry of sperms
d. They induce follicular atresia
1. a & b
2. a only
3. a,b, & c
4. a,b,c, & d

17.

Identify the A, B & C in the following diagram with respect to segregation of chromosomes during germ cells formation.

1. A -${\mathrm{G}}_2$, B - Anaphase l, C - Anaphase ll
2. A - S, B - Metaphase l, C - Anaphase l
3. A -${\mathrm{G}}_1$, B -${\mathrm{G}}_2$, C - Anaphase ll
4. A -${\mathrm{G}}_2$, B - Metaphase ll, C - Anaphase ll

18.

Select the option including all sexually transmitted diseases:
1. Gonorrhoea, Malaria, Genital herpes
2.AIDS, Malaria, Filaria
3.Cancer, AIDS, Syphilis
4. Gonorrhoea, Syphilis, Genital herpes

19.

In Which of the following techniques, the embryos are transferred to assist those females who cannot conceive?

20.

Match List-I with List-II

Choose the correct answer from the options given below:

21. Given below are four methods (A-D) and their modes of action (a-d) in achieving contraception. Select their correct matching from the four options that follow:

Options:

22. Identify the incorrect statement:

23. In the context of amniocentesis, which of the following statement is incorrect?
1. It can be used for prenatal sex determination.
2. It can be used for the detection of Down's syndrome.
3. It can be used for the detection of cleft palate.
4. It is usually done when a woman is 14-16 weeks pregnant.

24. Given below are two statements:

In light of the above statements, choose the correct answer from the options given below:
1. Statement I is correct but Statement II is false
2. Statement I is incorrect but Statement II is true
3. Both Statement I and Statement II are true
4. Both Statement I and Statement II are false

25. Which of the following statements are correct?

Choose the most appropriate answer from the options given below:

26. Which among the following is not the correct mode of action of steroidal oral contraceptives?
1. Spermicidal action
2. Inhibit the release of gonadotropins
3. Alter the quality of cervical musuc
4. Inhibition of ovulation

27. Choose the pair of methods of contraception that work by blocking gamete transport to the site of fertilisation and characterised by poor reversibility.
1. Male condom and female condom
2. Vasectomy and tubal ligation
3. Coitus interruptus and rhythm method
4. Nirodh and Mala D

28. Which of the following statements is incorrect w.r.t. amniocentesis?

29. Oral contraceptive pills contain
1. FSH and LH hormones
2. Progestogen and estrogen combination
3. Prolactin
4. Mifepristone

30. Which of the following is a wrong match between the type of contraception and its function?

Chemistry

31.

When an electric current is passed through acidulated water, 112 mL of hydrogen gas at STP collects at the cathode in 965 second. The current passed, in ampere is:
1. 1.0
2. 0.5
3. 0.1
4. 2.0

32.

The change in reduction potential of a hydrogen electrode when its solution initialy at pH = 0 is neutralised topH = 7, is a/an-

33.

For the cell, Ti|Ti⁺(0.001M)||Cu²⁺(0.1M)|Cu,E_cell at 25$°$C is 0.83 V. E_cell can be increased:
1. By increasing [Cu²⁺]
2. By increasing [Ti⁺]
3. By decreasing [Cu²⁺]
4. None of these

34.

A solution of sodium sulphate in water is electrolysed using inert electrodes. The products at the cathode and anode are respectively:
1. H₂, O₂
2. O₂, H₂
3. O₂, Na
4. O₂, SO₂

35.

The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds is (charge on electron = 1.60 x 10^-19 C)
1. 6 x 10²³
2. 6 x 10²⁰
3. 3.75 x 10²⁰
4. 7.48 x 10²³

36.

Calculate the useful work of the reaction Ag(s) + 1/2Cl₂(g) $\underset{}{\overset{}{\to }}$ AgCl(s)
Given $\mathrm{E}{°}_{\mathrm{Cl}2/{\mathrm{Cl}}^{–}}=+1.36\mathrm{V},\mathrm{E}{°}_{\mathrm{AgCl}/\mathrm{Ag},{\mathrm{Cl}}^{–}}=0.22\mathrm{V}$
If ${\mathrm{P}}_{{\mathrm{Cl}}_2}$ = 1 atmand T = 298 K
(1) 110 kJ/mol
(2) 220 kJ/mol
(3) 55kJ/mol
(4) 1000 kJ/mol

37.

Two electrodes are fitted in conductance cell 1.5 cm apart while the area of cross-section
of 1.5 cm apart while the area of cross-section of each electrode is 0.75 cm². The cell
constant is-
1. 1.0125 cm
2. 0.5 cm
3. 2.0 cm^-1
4. 0.2cm^-1

38.

How much current is necessary to produce $H_2$ gas at the rate of 1$c{m}^3$ per second under STP ?
(A) 4.305 amp
(B) 17.22 amp
(C) 8.61 amp
(D) 2.1525 amp.

39. Calculate the e.m.f. for the following cell reaction:
\(F e^{2+}+Z n → Z n^{2+}+F e\)
The standard potentials\(E^{\circ} \text {,for the half reactions are as}\)

\(Z n →Z n^{2+}+2 e ; E^{\circ}=+0.76 \mathrm{~V}\)
\(F e → F e^{2+}+2 e ; E^{\circ}=+0.41 \mathrm{~V}\)
1. – 0.35 V
2. + 0.35 V
3. + 1.17 V
4. – 1.17 V

40.

How much charge should be supplied to a cell for the electrolytic production of 245 gm$NaCl{O}_4$from$NaCl{O}_3$if the anode efficiency for the required reaction is 60%?
(1) 6.43 ×${10}^{5}C$
(2) 3.67 F
(3) 6.43 ×${10}^{6}C$
(4) 5.67 F

41.

The number of electrons involved in the deposition of 63.5 g of Cu from a solution of$CuS{O}_4$ is:
1$6.022$$\times$${10}^{23}$$$
2$3.011$$\times$${10}^{23}$$$
3$12.044$$\times$${10}^{23}$$$
4$$$6.022$$\times$${10}^{22}$

42.

Adiponitrile is manufactured electrolytically from acrylonitrile$C{H}_2=CHCN\to CN–(C{H}_2{)}_4–CH$
How many kg of adiponitrile (molecular mass = 108) is produced in 9.65 hr using a current of 3750 A with 80% efficiency?
(1) 30 kg
(2) 58 kg
(3) 60 kg
(4) 80 kg

43.

The$k=$$4.95$$\times$${10}^{-5}S$$c{m}^{-1}$for a 0.00099 M solution. The reciprocal of the degree of dissociation of acetic acid, if${\wedge }_m^0$for acetic acid is 400 S$c{m}^{2}mo{l}^{-1}$will be:

44.

Limiting molar conductivity of NH₄OH(i.e.,${\mathrm{\Lambda }}_{\mathrm{m}\left({\mathrm{NH}}_4\mathrm{OH}\right)}^0$is equal to -
1. ${\mathrm{\Lambda }}_{\mathrm{m}\left(\mathrm{NaOH}\right)}^0+{\mathrm{\Lambda }}_{\mathrm{m}\left(\mathrm{NaCl}\right)}^0-{\mathrm{\Lambda }}_{\mathrm{m}\left(\mathrm{NaOH}\right)}^0$
2. ${\mathrm{\Lambda }}_{\mathrm{m}\left(\mathrm{NaOH}\right)}^0+{\mathrm{\Lambda }}_{\mathrm{m}\left(\mathrm{NaCl}\right)}^0-{\mathrm{\Lambda }}_{\mathrm{m}\left({\mathrm{NH}}_4\mathrm{Cl}\right)}^0$
3. ${\mathrm{\Lambda }}_{\mathrm{m}\left({\mathrm{NH}}_4\mathrm{OH}\right)}^0+{\mathrm{\Lambda }}_{\mathrm{m}\left({\mathrm{NH}}_4\mathrm{Cl}\right)}^0-{\mathrm{\Lambda }}_{\mathrm{m}\left(HCl\right)}^0$
4. ${\mathrm{\Lambda }}_{\mathrm{m}\left({\mathrm{NH}}_4\mathrm{Cl}\right)}^0+{\mathrm{\Lambda }}_{\mathrm{m}\left(\mathrm{NaOH}\right)}^0-{\mathrm{\Lambda }}_{\mathrm{m}\left(\mathrm{NaCl}\right)}^0$

45.

The standard reduction potential for Cu⁺²/Cu is + 0.34V. What will be the reduction potential at pH = 14 for the above couple, K_sp of Cu(OH)₂ is 1.0 × 10^–19
1. – 3.2013
2. – 0.2205
3. – 0.913
4. – 1.23

*If above link doesn't work, please go to test link from where you got the pdf and fill OMR from there

CLICK HERE to get FREE ACCESS for 2 days of ANY NEETprep course