Answer:
Roots. Roots are simple tissues that are derived from the stem of the plant.
Xylem. The xylem is tissue that transports water throughout the plant.
Phloem. The phloem is the plant's food transportation system.
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Answer:
Photosynthesis
Explanation:
Plants absorb Carbon Dioxide through small holes in their leaves. Not the roots that are in the soil.
Answer:
a. True, b. False, c.True, d. True
Explanation:
a. Base excision repair is started by a DNA glycosylase that recognizes the changes and removes the altered base by cleavage of the glycosidic bond binding the base and the deoxyribose sugar together.
b. Nucleotide excision repair works by a cut-and patch mechanism that removes their heavy lesions, including pyrimidine dimers and nucleotides . Endonucleases are responsible for the lesion of the damaged strand.
c. Nucleotide excision repair is initiated by the proteins namely UvrA, UvrC, and UvrB in Escherichia coli.
-UvrD (helicase II) later removes the damaged strand
-DNA polymerase I (PolI) fills in the resulting gap.
d. DNA glycolases removes the damaged nitrogenous base.
-It leaves the sugar-phosphate backbone intact and thus creating an apurinic/apyrimidinic site, which is commonly referred to as an AP site.
e. Xeroderma pigmentosum complementation group A(XPA)
-This is an essential protein in the nucleotide excision repair pathway.
- It helps to make a pre-incision complex along with other proteins.
Answer:
Pituitary gland
Explanation:
To initiate puberty brain releases gonadotropin-releasing hormone, or GnRH which further activates the pituitary gland. Pituitary gland release two essential hormone into the body of both male and female - luteinizing hormone (LH) and follicle-stimulating hormone (FSH). These two hormones affect the two genders differently. In female these two hormones act on ovaries and further leads to release of estrogen
