_____ cells of phloem are directly involved in transport of organic solutes?

1. 1. Parenchyma
   2. Sieve element
   3. Companion cell
   4. Tracheid

Sickle cell anemia is an example of_____.

1. 1. Point mutation
   2. Chromosomal aberration
   3. Insertion of gene
   4. Deletion of gene

Prokaryotes don’t have:_____.

1. 1. Cell membrane
   2. Cytoplasm
   3. Nucleus
   4. All of these

Tobacco mosaic virus is_____.

1. 1. Spherical
   2. Tadpole like
   3. Hexagonal
   4. Rod Shaped

The dichotomously branching system has shape similar to_____.

1. 1. U
   2. Y
   3. R
   4. Fork

Which one of the following is the largest group of fungi?

1. 1. Zygomycota
   2. Basidiomycota
   3. Deuteromycota
   4. Ascomycota

Most dinoflagellates are_____.

1. 1. Unicellular
   2. Multicellular
   3. Both of these
   4. Zooflagellates

If more substrate to already occurring enzymatic reaction is added more enzyme activity is seen because_____.

1. 1. There is probably more substrate present than there is enzyme.
   2. There is probably more product present than there is either substrate or enzyme.
   3. The enzyme substrate complex is probably failing to form during the reaction
   4. There is probably more enzayme available than there is substrate

Exact replica of chromosome refers to _____.

1. 1. Chromatid
   2. Centromere
   3. Kinetochore
   4. Arms

Which of the following is the basic unit of classification_____.

1. 1. Genus
   2. Family
   3. Species
   4. Order