Biology
Name the following:
(a) The repeating components of each DNA strand lengthwise.
(b) The complex structure consisting of DNA strand and a core of histones.
(c) The type of bond which joins the complementary nitrogenous bases.
(d) The three components of nucleotide.
Related Questions
The pyrimidine bases of DNA are:
- Adenine and Guanine
- Guanine and Cytosine
- Adenine and Thymine
- Thymine and Cytosine
The female gamete/egg cell of a human cell will have:
- 44 + XX chromosomes
- 44 + XY chromosomes
- 22 + X chromosomes
- 22 + Y chromosomes
Imagine one cell (A) has undergone one mitotic division and another cell (B) has completed its meiotic division. How many daughter cells would the two produce?
Cell A: ……………………….
Cell B: ………………………..Match the events given in column A with the phase in mitotic cell division in column B
Column "A" Column "B" (a) Chromosomes get arranged in a horizontal plane at the equator. Anaphase (b) Daughter chromosomes move to the opposite poles of a spindle. Prophase (c) Chromosomes become visible as fine long threads. Telophase (d) Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. Metaphase