Answer:
Microscopic charcoal, Vegetation.
Explanation:
- As the researchers conducting research in the Nile region identified that an increase in temperatures leads to an increase in droughts and reduction of natural vegetation and thereby the chances of the occurrence of natural fires.
Answer:
Properties Of Carbon :
Explanation:
Carbon:
Symbol: C
Electronic Configuration: 2 , 4
Valency : 4 (Tetra-valency)
Occurrence in nature →Earth's crust → 0.02% in the form of minerals like carbonates, coal, petroleum.
In atmosphere -0.03% in carbon dioxide is ( gaseous form)
Properties of carbon:
- Carbon forms Covalent is bonding and Covalent compounds wwhich do not conduct electricity.
- Carbon has three allotropes i.e Diamond, Graphite and Fullerenes.
- In diamond carbon atoms bonded together in tetrahedral lattice arrangement.
- In graphite carbon atoms are bonded together in sheets of hexagonal lattice.
- In Fullerenes ccarbon atoms are bonded together in spherical, tubular, or ellipsoidal forms.
- Carbon plays a major role in organic compounds.
- Carbon is a Tetravalency. (valency :4)
- So that it is easily share the electrons so that it gives a possibility of large number of compounds. Carbon compounds are also called as organic compounds. Carbon compounds are also called organic compounds.
Answer:
B. Greenland
Explanation:
Rainforests are found in Alaska, Australia, and Africa, but not Greenland.
Answer:
DNA ligase
Explanation:
DNA replication is a process whereby a particular DNA makes a copy of or synthesizes itself. It consists of several steps with some important enzymes for successful, error free replication. The various steps are as follows;
- Unwinding of the double helix structure of the DNA and formation of replication fork. The enzyme involved here is the DNA helicase.
- Primer, a short piece of RNA becomes synthesized and binds to the 3' end of one of the 2 strands of the DNA, the leading strand. The enzyme involved is the DNA primase.
- Replication of the <em>leading strand</em> then proceeds with the elongation of the primer through the addition of bases in the 5' to 3' direction leading to the formation of continuous strands.
- The other strand of the DNA, known as the <em>lagging strand </em>starts its own replication by binding with multiple primers at different regions of the strand. Bases are then added to each primer leading to the formation of several, short discontinuous DNA strands known as Okazaki fragments. The enzyme involved in the elongation process is the DNA polymerase.
- Next is the termination of the replication process after the formation of the continuous and discontinuous strands. Exonuclease enzyme removes primers from the synthesized strands. Primers are replaced by appropriate DNA bases and the Okazaki fragments are joined to form a unified DNA strand by an enzyme known as the DNA ligase.
The many, few nucleotides long DNA segments observed by the Biochemist are the Okazaki fragments that should have been joined together by the DNA ligase.
Hence, DNA ligase must have been the component left of the mixture.
Answer:
yes it is :) I hope this helps:)
