Mann Marathi Tv

Standard XI - Biology Chapter 4 : Kingdom Animalia - Exercise Questions  & Answers - Maharashtra State Board New Syllabus 4. KINGDOM ANIMALIA - Exercise 1. Choose correct option.  A. Which of the following belongs to minor phylum ?  A. Comb jelly B. Jelly fish C. Herdmania D. Salpa Answer: B. Jelly fish B. Select the animal having venous heart.  A. Crocodile B. Salamander C. Rohu D. Toad Answer : D. Toad C. In Ascaris,   ..............  A. Mesoglea is present B. Endoderm is a discontinuous layer C. Mesoderm is present in patches D. Body cavity is absent. D. Which of the following is incorrect in case of birds ?  A. Presence of teeth B. Presence of scales C. Nucleated RBCs D. Hollow bones Answer : A. Presence of teeth E. Chitinous exoskeleton is a characteristic of.........  A. Dentalium B. Antedon C. Millipede D. Sea urchin 2. Answer the following questions A. Reptiles are known for having three chambered heart. Which animal shows earlier...

Standard XI - Biology Chapter 7 - Exercise Solutions : All questions and answers Maharashtra Stae Board New Syllabus 7. Cell Division - Exercise 1. Choose the correct option. A. The connecting link between Meiosis-I and Meiosis-II is......  A) Interphase-I B) interphase-II C) interkinesis D) anaphase- I Answer : C) interkinesis B.  Synapsis is pairing of .......  A) any two chromosomes B) non-homologous chromosomes  C) sister chromatids D) homologous chromosomes Answer : D) homologous chromosomes C. Spindle apparatus is formed during which stage of mitosis?  A) Prophase B) Metaphase C) Anaphase D) Telophase Answer : A) Prophase D. Chromosome number of a cell is almost doubled up during...  A) G1 - phase B) S - phase C) G2 - phase D) G0 Phase Answer: B) S- Phase E. How many meiotic divisions are necessary for formation of 80 sperms ?  A) 80 B) 40 C) 20  D) 10  Answer: C) 20 F. How many chromatids are present in anaphase - I of meiosis- I of a ...