Which of these can be observed in the mesohyl of various undisturbed sponges at one time or another?

1. amoebocytes

2. spicules

3. spongin

4. zygotes

5. choanocytes

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#Question id: 14853

#13. Methods in Biology

If the sum of the mean and the variance of a Binomial distribution for 18 trials is 10, find the distribution

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#Question id: 14856

#13. Methods in Biology

If 3 squares are chosen at random on a chess board the probability that they should be in a diagonal line is

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#Question id: 14857

#13. Methods in Biology

A man has 9 friends (4 men and 5 women). In how many ways can he invite them, if there have to be exactly 3 women in the invitees ?

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#Question id: 15006

#8. Inheritance Biology

Which of the following is not a mechanism for sex determination?

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#Question id: 15009

#8. Inheritance Biology

A mutation in which most of the protein coding sequence of the gene is removed is most likely to be which type of allele?

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#Question id: 15011

#8. Inheritance Biology

Which of the following statements about a lethal allele is NOT correct?