Question

A. ) Name the following

i.) A cell division is leading to growth and development.

ii.) The point at which chromosomes are joint.

iii.) The instrument to measure root pressure.

iv.) Genetic makeup of an organism.
v.) The largest phase of normal cell cycle.​

Answer 1

Answer:

(1.)In unicellular organisms, cell division is the means of reproduction; in multicellular organisms, it is the means of tissue growth and maintenance. Survival of the eukaryotes depends upon interactions between many cell types, and it is essential that a balanced distribution of types be maintained. This is achieved by the highly regulated process of cell proliferation. The growth and division of different cell populations are regulated in different ways, but the basic mechanisms are similar throughout multicellular organisms

(2.) The sister chromatids are pairs of identical copies of DNA joined at a point called the centromere. During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes.

(3.)Auxanometer

Root pressure is measured by an instrument called Auxanometer. It measures plant growth as well as pressure developed within xylem cells of roots.

(4.)In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. In a more narrow sense, the term can be used to refer to the alleles, or variant forms of a gene, that are carried by an organism.

(5.)Interphase

Stages of Interphase

During interphase, the cell undergoes normal growth processes while also preparing for cell division. It is the longest phase of the cell cycle, cell spends approximately 90% of its time in this phase.

Answer 2

Explanation:

1)cell division refers to increase in cell size and cell division describe division of mother cell into two daughter cell

2) chromosome are joint at point centromere

3) root pressure is measured by auxanometer

4)term genotype refers to genetic makeup of an organism

5) interphase is the largest normal phase in cell cycle

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