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Syllabus
If Anaphase ...Why?
If Metaphase..... Why not???
1. Deafness is caused due to rupturing of pinna.
2. Watson and Crick showed the double helical structure of the molecule RNA.
3. Remarkable human fossil was that of Homo habilis.
4. Apical dominance is caused by auxins.
5. Cones enable us to see in darkness
(A) Cytokinesis
(B) Mitosis
(C) Meiosis
(D) Karyokinesis
e) A homozygous tall plant (T) bearing red coloured flowers (R) is crossed with a Homozygous dwarf (t) plant bearing white flower (r)
i. Give the genetype and phenotype of the F1, generation.
ii. Mention the possible combination of gametes that can be formed from the F1, hybrid plant.
iii. List the phenotype of the offsprings of the F2 generation
Q.7. Name the three end products of photosynthesis.
(a) Name the following
(i) The solid mass which left behind the clot.
(ii) Specific sequences of nucleotides on a chromosome, those encode a particular proteins.
(iii) The tissue concerned with upward conduction of water in plants.
(iv) The full complement of DNA of an organism .
(v) The difference between the birth rate and the death rate.
S-phase: During this phase, replication of DNA takes place. Each chromosome contains two sister chromatids, that are attached to a common centromere. At this stage the cell is 4n (4 copies of each DNA molecule, 2 in each homologous chromosome).
99. _____ are useful in providing information for identification of names of species found in an area.
(a) Flora (b) Manuals
(c) Monographs (d) Catalogues
1.Genetic composition of an organism.
2.What are the constituents of gametes?
3.Write al possible combination of gametes that can be obtained in F1 hybrid of pure breeding pea plant with round and yellow seeds with another plant with wrinkled and green seeds.
4.Name a pair of chromosome carrying alleles for a particular character.
5.V-shaped chromosomes having centromere at centre.
6.Stage after crossing over occurs in meiosis.
Is this telophase because the chro-matids have moved to opposite poles and the construction has begun already?
Q. At prophase, chromosomes remain condensed so how can it say that chromosomes become visible as fine long threads?