Biology Worksheet With Answers Page 2
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10(a) mesocarp (b) fleshy aril
(c) endosperm (d) pericarp
Ans. (b)
9. Which of the following are homologous organs?
(a) Wings of bird and wings of insect
(b) Wings of bat and wings of cockroach
(c) Wings of bird and hand of human
(d) Nails of human being and claws in animals
Ans. (c)
10. In human beings, multiple genes are involved in the inheritance of:
(a) colour blindness (b) phenylketonuria
(c) sickle cell anaemia (d) skin colour
Ans. (d)
11. Which of the following plant kingdom is called ‘amphibians’?
(a) Tracheophyta (b) Bryophyta
(c) Pteridophyta (d) Thallophyta
Ans. (b)
12. Model for DNA structure was proposed by:
(a) Beadle and Tatum (a) M. C. Chung
(c) Purkinje (d) Watson and Crick
Ans. (d)
13. Cell wall is outer covering of plant cell made up of cellulose it is:
(a) semipermeable (b) permeable
(c) non permeable (d) all of these
Ans. (b)
14. Protein is the body building material of animals. It is the polymer of:
(a) glucose (b) nucleotides
(c) amino acids (d) fatty acids
Ans. (c)
15. A molecule of sedoheptulose has carbon atoms numbering:
(a)3 (b)4
(c)5 (d)7
Ans. (d)
16. Which of the following disease is the result of ‘thiamine’ deficiency?
(a) Marasmus (b) Ben-ben
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