MODEL TEST PAPER CLASS XII BIOLOGY (TERM -1) ( FOR PSEB/ CBSE)
Q1 . Identity the given organism and find its maximum life span
- (a) Sparrow, 25 years
- (b) Crow, 30 years
- (c) Crow, 15 Years
- (d) Eagle, 40Years
- (c) Crow, 15 Years
Q2. In which of the following mammal oestrans cycle is absent
- (a) Cow
- (b) horse
- (c) monkey
- (d) rabbit
- (c) monkey
Q3. Meiosis is best seen in
- (a) gamete
- (b) microsporangium
- (c) Pollen grain
- (d) anther wall
- (b) microsporangium
Q4. In xenia, pollen affects
- (a)endospern
- (b) testa
- (c) tagmen
- (d) nucellus
- (a) endospern
Q5. The concept of plant test tube fertillization was first reported from the laboratory of
- (a) P. Maheshwari
- (b) Skoog
- (c) Shimakuran
- (d) Nitsch
- (a) P. Maheshwari
Q6. Identify the diagram.
- (a) Pollen tetrad
- (b) Pollen mother cell
- (c) Mature pollengrain
- (d) Mega spore mother cell
- (c) Mature pollengrain
Q7. The 'ubisch bodies' are present in
- (a) pollentube
- (b) P.M.C
- (c) pollen grain
- (d) taperal cells
- (b) P.M.C
Q8. GIFT involves
- (a) transfer of zygote into the fallopian tube
- (b) transfer of embryo into the uterus
- (c) transfer of a mixture of sperms and ova into the fallopian tube
- (d) transfer of a mixture of sperms and ova into the uterus
- (c) transfer of a mixture of sperms and ova into the fallopian tube
Q9. Capacitation occurs in:
- (a) Rete Testis
- (b) Epididymis
- (c) Vas deferns
- (d) Female Reproductive Tract
- (d) Female Reproductive Tract
Q10.Amphimixis is
- (a) reaction of antifertilizin and fertilizin
- (b) fusion of male and female pronuclei
- (c) formation of reception cone by ovum
- (d) penetration of sperm into ovum
- (b) fusion of male and female pronuclei
Q11 . The given figure is of human female reproductive system. identify the parts labelled A,B,C and D select the correct option
- (a) A - Oviduct , B- Uterus, C- Ovarian Ligament, D- Ovary
- (b) A - Cervix , B- Uterus, C- Ovary, D - Tumour
- (c) A- Uterus, B-Uterus cavity, C- Oviducal funnel, D- Ovary
- (d) A- Cervix, B-Uterus cavity, C- Fallopian Tube, D- Ovary
- (d) A- Cervix, B-Uterus cavity, C- Fallopian Tube, D- Ovary
Q12. Menstrual cycle occurs in
- (a)Female primates
- (b) human primates
- (c) mammalian females
- (d) rabbit
- (b) human primates
Q13. How many condoms per year may be needed to protect a couple from increasing the population of India
- (a) 3
- (b) 52
- (c) 72
- (d) 92 only
- (c)72
Q14. Amniocentensis is
- a) Intrauternie diagnosis
- (b) analysis of viral diseases
- (c) obtaining amniotic cells to study congential disorders
- (d)all above
- (c) obtaining amniotic cells to study congential disorders
Q15. In India, the population policy was announced in which year?
- (a) 1971
- (b) 1976
- (c) 1978
- (d)1981
Q16.XO type of sex determination is seen in
- (a) Man
- (b) Grasshopper
- (c) Horses
- (d) Drosophilia
- (b) Grasshopper
Q17. Karytyping is based on
- (a) Number of centromeres
- (b) Number and size of chromosomes
- (c) Number of genes
- (d) number of silent genes
- (b) Number and size of chromosomes
PHYSICS/CHEMISTRY GUESS PAPER FOR PSEB/CBSE FIRST TERM EXAM 2021
Q18. Person who are color blind cannot distinguish
- (a) red and green
- (b) yellow and white
- (c) black and white
- (d) yellow and blue
- (a) red and green
Q19. A couple whose sons are colourblind with AB blood group, identify the parents from the following
- (a) mother colourblind with A good group and father normal with blood group B
- (b) mother normal with blood group A and father colourblind with blood group B
- (c) mother colourblind with blood group B and father normal with blood group B
- (d) mother normal with blood group A and father colourblind with blood group B
- (a) mother colourblind with A good group and father normal with blood group B
Q20. Mendel studied seven contrasting characters for his breeding experiment with pes. which of the following characters he did not use.
- a) Pod shape
- (b) Leaf Shape
- (c) Plant height
- (d) Pod color
- (b) Leaf Shape
For all exam, read the gk of today
Q21 . The thinnest DNA form is
- (a) A
- (b) B
- (c) Z
- (d) none above
- (c) Z
Q22. Genetic code is
- (a) degenerate, overlapping, ambigous
- (b) degenerate, non overlapping, unambigous
- (c) universal, overlapping, ambigous
- (d) degenerate, non overlapping, ambigous
- (b) degenerate, non overlapping, unambigous
Q23. Out of 64 codons, the number of codons with GGG is
- (a) 1
- (b) 2
- (c) 4
- (d) 6
- (a)1
Q24. The correct sequence according to the molecular weight is
- (a) rRNA, tRNA, DNA
- (b) tRNA, DNA, rRNA
- (c) rRNA, DNA, tRNA
- (d) DNA, rRNA, tRNA
- (a) rRNA, tRNA, DNA
PHYSICS/CHEMISTRY GUESS PAPER FOR PSEB/CBSE FIRST TERM EXAM 2021
