Answer;
petit arm
Explanation;
All human chromosomes have 2 arms, the p (short) arm and the q (long) arm. They are separated from each other only by a primary constriction, the centromere, the point at which the chromosome is attached to the spindle during cell division.
The symbol "p" stands for "petit", small in French, while "q" was chosen merely because it was the next letter in the alphabet.
1. The right answer is in a discontinuous manner.
During DNA replication, the DNA polymerase synthesizes complementary DNA by mating on both strands, since the two strands are antiparallel, the replication is bidirectional, which means that one of the two strand is synthesized in a direction opposite to that of the direction of the enzyme, to do this, the DNA polymerase is obliged to synthesize DNA in the form of small fragments which are called Okazaki fragments, and its synthesized discontinuously (these fragments are not glued together by phosphodiester liasons, it is only after that another enzyme will intervene to ligate these fragments (DNA ligase).
gamete: a mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
spore:a minutes typically one-felled, reproductive unit capable of giving rise to a new individual without sexual fusion, characteristic of lower plants, fungi, and protozoans.
algae: a simple, nonflowering, and typically aquatic plants of a large group that includes the seaweeds and many single-celled forms. algae contains chlorophyll but lack true stems, roots, leaves, and vascular tissue.
fungi:any group of spore-producing organisms feeding on organic matter, including molds, yeast, mushrooms, and toadstools.
lichen:a simple slow-growing plant that typically forms a low-crusty,leaflike, or branching growth on rocks, walls, and trees.
decomposer: an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
<span>The levels of organization of life from the least
complex to most complex are enumerated below:<span>
<span>a.
Organelles - the basic part of a living organism. It refers to the different
structures of the cell, whether prokaryotic or eukaryotic. (Ex. Mitochondria,
nucleus)</span>
b. Cells
- building blocks of life that are composed of different molecules responsible
for the function of an organism. (Example: prokaryotic, eukaryotic cells)
c. Tissues
- combinations of cells that carry out a specific function in an organism.
(Example: Human skin)
d. Organs
- collections of tissues that perform specific functions. (Ex. heart, lungs)
e. Organ
Systems - composed of interconnected organs that function as a whole. Many
organisms, particularly mamamals, are composed of organ systems. (Ex.
respiratory, circulatory systems)
<span>f. Organisms
– individual entities that specifically make-up a population. (Ex. Each tree in
the forest is an organism, each animal in sea is an organism)</span></span></span>
g. Population – species living within a specific
location. It could be the same or different species that inhabit a place. (Ex. Birds
are species in the forest as well as bears)
h. Community – refers to the total number of
populations that inhabit a specific location. (Ex. All of the trees, insects,
birds that inhabit the forest are a community)
i. Ecosystem – consists of all living things that
function together as a group which also includes the non-living parts of the
environment. (Ex. Rain water, nitrogen in the soil)
<span>j. Biosphere – the highest organization of life
that consist of all the collection of ecosystems in the planet. It includes the
land, air, water, even the atmosphere of the planet. </span>
