Multan Board 2017
Biology
PART-2
Time: 30 Minutes
Group-1
Note: Write answers to the questions on the objective answer sheet provided. Four possible answers A, B, C and D to each question are given. Which answer you consider correct, fill the corresponding circle  A, B, C and D given in front of each question with Marker or pen ink on the answer sheet provided.

• The internal fertilization leads to internal development of embryo which gives birth to young one such animals are called:-

1. Oviparous
2. Viviparous
3. Ovoviviparous
4. Vivi – Oviparous

• The head can be regenerated in:

1. Earthworm
2. Frog
3. Leech
4. Grasshopper

• The scientist who suggested that the information encoded within the DNA of chromosomes acts to specify particular enzymes was:-

1. Griffith
2.  Garrod
3. Graham
4. Ghoul

• The chromosomes appear as thin threads haying length of:-

1. 0.25μm to 50μn
2. 1.5μn to 50μm
3. 25μn to 50μm
4. 0.025μm to 50μm

• About 20 % suffer from haemophilia B due to disturbance in factor:-

1. ix
2. x
3. xi
4. xii

• Hamilton O Smith isolated the first restriction enzyme in:-

1. 1950
2. 1960
3. 1970
4. 1980

• The scientist who published Principles of Geology was.

1. Lamarck
2. Linnaeus
3. MyeIl
4. Lyell

• The study of succession on a dry snit or rock is called:-

1. Hydrosere
2. Xerosere
3. Derosere
4. Terosere

• Felis hengalensis is the Zoological name of:-

1. Leopard Cat
2. Leopard
3. Cat
4. Tiger

• The lead(Pb) poisoning damages the human:-

1. Nervous system
2. Brain
3. Skin
4. Breathing system

• Among the vertebrates hagfishes are isotonic with the surrounding:-

1. Fresh water
2. Sea's water
3. Pond's water
4. Rivers water

• The membrane that bounds vacuole is called:-

1. Tomoplast
2. Tonoplast
3. Monoplost
4. Tocoplast

• The special condition of rest, which enables an embryo to survive the long periods is:-

1. Root Dormancy
2. Shoot Dormancy
3. Seed Dormancy
4. Plant Dormancy

• In human cell, average cell cycle is about:-

1. 14 hours
2. 24 hours
3. 34 hours
4. 44 hours

• Liver also has numerous crucial functions of,

1. Osmoregulation
2. Horneostasis
3. Excretion
4. Thennoregulation

• Sacrum is formed by the fusion of anterior:-

1. Two bones
2. Three bones
3. Four bones
4. Five bones

• Excess thyroxine produces a disease called:-

1. Addison's
2. Cretinism
3. Graves
4. Epilary

SUNJECTIVE PART
SECTION B

Q 2. Attempt any eight parts.

1. What is Hyperoxaluria? What are its effects?
2. Write two important functions of Liver.
3. How Osmoregulation takes place in Marine Environment?
4. What is Pulvinus? What is its function?
5. What are Paratonic Movements? Name its types.
6. What is the difference between Compact and Spongy Bone?
7. What are Fratemal Twins? What is its function?
8. What is Corpus Luteum? What is its function?
9. What is the location of Desert Ecosystem in Pakistan?
10. What is Profundal Zone? What is its source of Nutrition?
11. Differentiate between Population Explosion and Population Pressure.
12. What are Environmental Buffers? What are their effects?

Q 3. Attempt any eight parts.

1. What is the role of Cytokinins?
2. Define Reflex action and Reflex arc.
3. What is the role of Hind-brain?
4. Differentiate between Sex Limited and Sex Influenced Traits.
5. Differentiate between Genotype and Phenotype
6. What is ZW ZZ mechanism of sex determination?
7. Why urine is preferred to isolate biotechnology products than milk?
8. How to get a gene of interest?
9. When a balloon catheter is used?
10. Name the six major terrestrial biomes.
11. Define Autecology.
12. Differentiate between Predator and Prey.

Q 4. Attempt any six parts.

1. What is Hardy - Weinberg Theorem?
2. What are Hydrothermal Vents?
3. Differentiate between Apoptosis and Necrosis.
4. How Meiosis is important for living individuals?
5. Discuss the role of Cytoplasm in development.
6. Differentiate between Gerontology and Teratology.
7. Sketch a Phosphodiester Bond.
8. Discuss three types of RNA.
9. Differentiate between Purines and individuals?

SECTION C

NOTE: - Attempt any three questions.

Q 5.

1. Describe different methods of Excretion in Plants.
2. Explain the Food chain and Food Web in an Ecosystem.

Q 6.

1. What are Skeletal Muscles? Discuss their structure in detail.
2. Define Mutations. Describe point mutations with the help of an example.

Q 7.

1. Compare Nervous System of Hydra with that of Planaria.
2. What are Renewable Resources? Explain any two of them.

Q 8.

1. What are the functions of Placenta during Pregnancy?
2. Define and explain Incomplete Dominance with example.

Q 9.

1. Explain the process of Aging.
2. Write a note on Endangered Species.

Multan Board 2017
Biology
PART -2
Time: 30 Minutes
Group 2
Note: Write answers to the questions on the objective answer sheet provided. Four possible answers A, B, C and D to each question are given. Which answer you consider correct, fill the corresponding circle  A, B, C and D given in front of each question with Marker or pen ink on the answer sheet provided.

• The simplest form of learning is

(A) Imprinting
(B) Habituation
(C) Insight learning
(D) Latent teaming  

• When sperms are in the tubules, the protection and nourishment is provided by:-

(A) Sertoli cells
(B) Interstitial cells
(C) Epididymis
(D) Seminiferous tubules

• Diploid parthenogenesis may occur in:-

(A) Wasps
(B) Honey bee
(C) Aphids
(D) Ants

• The shell over chick egg is secreted as it passes through:-

(A) Ovary
(B) Oviduct
(C) Cloaca
(D) Uterus

• Erwin Chargaff showed that the amount of guanine in DNA is always equal to:-

(A) Cytosine
(B) Thymine
(C) Adenine
(D) Uterus

• Crossing over during meiosis ocean at the stage of:-

(A) Leptotene
(B) Zygotene
(C) Diplotene
(D) Pachytene

• Cell death due to tissue damage is called:-

(A) Apoptosis
(B) Metastasis
(C) Necrosis
(D) Suicide

• The gene pairs which contribute to wheat grain colours are:-

(A) One
(B) Two
(C) Three 
(D) Four

• Taq polymerase is obtained from

(A) Fungi
(B) Algae
(C) Bacteria
(D) Virus

• In man the vestigial organ is:-

(A) Ear muscles
(B) Nictitating membrane
(C) Nose been
(D) Pelvis and leg bones

• Relationship between Rimoras and Sharks is an example of:-

(A) Commensalism
(B) Mutualism
(C) Predation
(D) Parasitism

• Desert ecosystem of Bhakkar and Mianwali is called:-

(A) Than
(B) Thai
(C) Cholistan
(D) Rohi

• _____acts as environmental buffer.

(A) Desert
(B) Ocean
(C) Forest
(D) Lakes

• Of all the excretory products, the principal one is:-

(A) Ammonia
(B) Urea
(C) Uric Acid
(D) Bilirubin

• The fishes which drink large amount of seas water and excrete concentrated urine are:-

(A) Cartilaginous fishes
(B) Bony fishes
(C) Lung fishes
(D) Lawless fishes

• A disease caused by low level of calcium in the blood is called:-

(A) Cramp
(B) Paralysis
(C) Tetany
(D) Tetanus

• ______ is unguligrade.

(A) Money
(B) Apes
(C) Rabbit
(D) Goat

SUBJECTIVE PART
SECTION B

Q 2. Attempt any eight parts.

1. What do you mean by Hyperoxaluria?
2. Define Panting.
3. What do you mean by Pyrexia and Pyrogens?
4. Define Appendicular Skeleton.
5. Differentiate between Microcephaly and Osteoarthritis.
6. What do you mean by Disc - slip?
7. Define Vernalisation.
8. Differentiate between Oviparous and Viviparous.
9. Name three zones in Lake Ecosystem.
10. Gives the names of some major ecosystems on land in Pakistan.
11. What do you mean by Nuclear Liturgy?
12. Define Environmental Butters.

Q 3. Attempt any eight parts.

1. What are Neurotransmitters? Give example.
2. Give commercial application of Ethane.
3. What is imprinting?
4. Define Lpistasis and Pleiotropic.
5. What are Multiple Alleles? Give example.
6. Explain MODY.
7. What are Palindromic is Sequences?
8. Give uses Of Bioreactors Name a few products.
9. Explain the importance of Gene Pharming.
10. Differentiate between Hydrosere and Xerosere.
11. What is Succession'? Name its types.
12. Define Grazing. How Grazers affect the texture of the soil?

Q 4. Attempt any six parts.

1. What are Inter Calary meristems? Give its function.
2. What do you know about Neoblast Cells?
3. Differentiate between Heterochromatin and Euchromatin.
4. What is Promoter?
5. What is meant by Central Dogma? Give its Function.
6. What is meant by Non Disjunction?
7. What are the symptoms of Turner's Sy0ndrome?
8. What do you know about Hydrothermal Vents?
9. Define the term Homology. Give example.

SECTION-C

NOTE: - Attempt any three questions.

Q 5.

1. Discuss Urinary System in Humans.
2. Draw the Nitrogen Cycle labelling all the steps.

Q 6.

1. What are the main differences between Exoskeleton and Endoskeleton? Explain.
2. Describe the experimental work of the Meselson - Stahl about DNA replication.

Q 7.

1. Explain structure and function of Forebrain in man.
2. Give an account of Eutrophication or Algal Bloom.

Q 8.

1. What do you know about Male Reproductive System of Humans?
2. What is Erythroblastosis Foetills? Write briefly.

Q 9.

1. Describe growth Correlations in Plants.
2. Define Gene Frequency. Describe factors affecting Gene Frequency.