DNA and RNA are alike because they both contain nitrogen bases, they are both nucleotides , they both contain sugar, and phosphate
Meristem at the tips of stems and roots produce rapid growth in plants. Meristem is a tissue that is mostly found in plants. Meristematic cells are responsible for the plant's rise and to keep the plant growing.
Answer:
Yes
Explanation:
Ectoparasite is an organism that lives and survive on its host. They are external parasite that live on the skin of their host.
B. Fleas are both ectoparasite and vectors of tapeworms.
Fleas lives on the body or skin of their host tapeworm or humans. Tapeworm are endoparasites that resides in human intestine. They survived by feeding and sucking the blood of their host. They are vectors because they transmit disease or are carriers of pathogens and eggs of tapeworm.
C. The three disease transmitted by ectoparasite to human are:
1. Malaria and this transmitted by female anopheles mosquito.
2. Sleeping sickness, it is transmitted by tse-tse fly.
3. Scabies, this is transmitted by mites.
Answer:
1. Phosphodiester bond.
2. Hydrogen
3. 2 hydrogen
4. 3 hydrogen
Explanation:
1. Deoxyribonucleotides bind together to form polynucleotides. This bond occurs between the phosphate group of one nucleotide and the C- 5' position of a 3 of another nucleotide. The type of bond formed in this interaction is called a PHOSPHODIESTER bond.
2. The nitrogenous bases of each nucleotide project the double helix. They form complementary base pairs through the formation of HYDROGEN bonds with bases on the opposite DNA strand.
3. Adenine complementarily binds with thymine and forms TWO HYDROGEN bonds bonds.
4. Guanine complementarily binds with cytosine and forms THREE HYDROGENbonds bonds.
