*_BIOLOGY OBJ_*
🔥 *POWERED BY SENIOR SOURCE SOLUTION TEAM*🔥
NIGERIA💯✔
GAMBIA💯✔
SIERRA LEONE💯✔
1-10: DBAABCDACC
11-20: CDCAACBDBB
21-30: DCCBDBCDDB
31-40: DBADDAACDD
41-50: ACDDABDCDB
*COMPLETED*💯💯
*GOODLUCK*
*COOLBOY*
08035452768
GHANA ANSWERS
5C
*1)DNA replicates and stores genetic information. It is a blueprint for all genetic information contained within an organism
*RNA converts the genetic information contained within DNA to a format used to build proteins, and then moves it to ribosomal protein factories.
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*2)DNA consists of two strands, arranged in a double helix. These strands are made up of subunits called nucleotides. Each nucleotide contains a phosphate, a 5-carbon sugar molecule and a nitrogenous base.
*)RNA only has one strand, but like DNA, is made up of nucleotides. RNA strands are shorter than DNA strands. RNA sometimes forms a secondary double helix structure, but only intermittently.
3) *The bases in DNA are Adenine (‘A’), Thymine (‘T’), Guanine (‘G’) and Cytosine (‘C’).
*RNA shares Adenine (‘A’), Guanine (‘G’) and Cytosine (‘C’) with DNA, but contains Uracil (‘U’) rather than Thymine.
Base Pairs Adenine and Thymine pair (A-T)
Cytosine and Guanine pair (C-G) Adenine a
4)*DNA
Adenine and Thymine pair (A-T)
Cytosine and Guanine pair (C-G)
RNA
Adenine and Uracil pair (A-U)
Cytosine and Guanine pair (C-G)
5)*Reactivity Due to its deoxyribose sugar, which contains one less oxygen-containing hydroxyl group, DNA is a more stable molecule than RNA, which is useful for a molecule which has the task of keeping genetic information safe.
* RNA, containing a ribose sugar, is more reactive than DNA and is not stable in alkaline conditions. RNA’s larger helical grooves mean it is more easily subject to attack by enzymes.
NIGERIA ANSWERS
SIERRA LEONE
GAMBIA
NIGERIA✅
SIERRA LEONE💯✔
GAMBIA💯✔
3a) tabular form
Parasitism=
Cattle and white fgret
Tapworm in the gut of human
Mutualism=
Lachea
Flowers and honey bees..
Commensalism=
Mistletoe and cacao plant.
ramorant plant
*3c*
i) Saprophytes are plants, fungi, and microorganisms that feed on dead or decaying matter (or, in more current and specific usage, they feed on the fungi that feed on the decaying material).
ii) examples are
----> molds
----> ghost plant or Indian pipe
---->mushrooms
---->gnome plant.
(6ai)
The enormous energy of lightning breaks nitrogen molecules and enables their atoms to combine with oxygen in the air forming nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth.
(6aii)
This organism oxidizes ammonia into nitrite as a metabolic process. Nitrosomonas are useful in bioremediation. They are important in the nitrogen cycle by increasing the availability of nitrogen to plants while limiting carbon dioxide fixation.
(6aiii)
Azotobacter helps to synthesizes some biologically active substances, including some phytohormones such as auxins, thereby stimulating plant growth.
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