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[A] : The mosses like liverworts , do no...

[A] : The mosses like liverworts , do not exhibit alternation of generation .
[R] : The adult gametophyte is conspicuous leafy green , photosynthetic plant in ferns .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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Consider the following statements. I. Kingdom Plantae includes eukaryotic, autotrophic, chlorophyll containing organisms. II. It includes algae bryophytes, pteridophytes, gymnosperms, but not angiosperms. III. Plants show alternation of generation [between haploid gametophytic (n) phase and diploid sporophytic (2n) phase]. Which of the statement given above are correct?

Assertion : The adult gametophyte is the conspicuous leafy green , photosynthesis plant popularly called moss. Reason : The mosses, like liverworts, do not exhibit alteraction of generation .

The life cycle of any sexually reproducting plant, there is an alternation of generation between (A)____ producing by haploid gametophyte and (B)____ producing by diplod Sporophyte.

A : Different plant groups show different patterns of life cycles. R : During life cycle there is alternation of genration between diploid gametophyte and haploid sporophyte.

The given graphs shows the productivity of an aquatic ecosystem measured in terms of dissolved oxygen produced and consumed by green plants and photosynthetic algae where PS=photosynthesis and R=respiration.

(a) If we cross pure - bred tall (dominant ) pea plants with pure - bred dwarf ( recessive ) pea plant we get pea plants of F_ 1 generation. If we now self- cross the pea plants of F_1 generation, then we obtain pea plants of F_ 2 generation. (i) What do the plants of F_1 generation look like ? (ii) What is the ratio of tall plants dwarf plants in F_2 generation ? (iii) State the type of plants not found in F_1 generation but appeared in F_2 generation, mentioning the reason for the same. (b) What are homologous structures ? Give an example. Is it necessary that homologous structures always have common ancestors ?

True or False type questions : (i) Two-kingdom classification is the oldest and was proposed by Robert H. Whittaker in 1969. (ii) Euglena is a unicellular organism which has both animal and plant features. (iii) Bacteria and fungi are called decomposers or reducers. (iv) Liverworts and masses belong to the kingdom plantae. (v) Genetic material in eukaryotes is circular, double-stranded, helical DNA, not enclosed by a nuclear envelope. (vi) Blue-green algae (cyanobacteria) are the photosynthetic monerans.

In the following items, each passage consists of six sentences. The first and the sixth sentence are given in the beginning as S_(1) and S_(6) . The middle four sentences in each have been removed and jumbled up. These are labelled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark accordingly on the Answer Sheet. S_(1) : There is still another important characteristic of living things. S_(6) : And abrupt changes occur too, which are called mutations. P : One generation is not a perfect copy of the preceding generation. Q : Plants and animals are not exactly like their parents. R : That attribute is the capacity to evolve. S : There is a continual realignment of inherited characteristics. The proper sequence should be : (a) P-S-Q-R (b) R-Q-P-S (c) Q-S-R-P (d) R-S-P-Q

TRUEMAN BIOLOGY-(AIPMT(NEET Phase-1)-2016)(Conducted by CBSE on 01-05-2016)(Solved Paper)-MCQs
  1. [A] : The mosses like liverworts , do not exhibit alternation of gener...

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  2. In a testcross involving "F"(1) dihybrid flies, more parental-type off...

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  3. Water soluble pigment present in cell vascuole is

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  4. Which of the following pairs of hormones are not antagonistic (having ...

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  5. Mitochondria and chloroplast are (a) Semi-autonomous organelles (...

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  6. Which of the following is not a feature of the plasmids ?

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  7. A plant in your garden avoids photorespiratory losses, has improved wa...

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  8. Emerson's enhancement effect and red drop have been instrumental in th...

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  9. When does the growth rate of a population following the logistic model...

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  10. Which one of the following statements is not true ?

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  11. Which one of the following statements is wrong

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  12. The Avena curvature is used for bioassay of

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  13. Which of the following structures is homologus to the wing of a bird?

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  14. Blood pressure in the pulmonary artery is

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  15. Fertilization in humans is practically feasible only if

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  16. In meiosis crossing over is initiated at

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  17. Chrysophytes, Euglenoids, Dinoflaegellates and Slime moulds are includ...

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  18. Lack of relaxation between successive stimuli in striated muscle contr...

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  19. Identify the correct statement on 'inhibin'.

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  20. Name the chronic respiratory disorder caused mainly by cigarette smoki...

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  21. Which of the following most appropriately describes haemophilia ?

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