Answer:
Iodine is a mineral which is present in the food such as diary products, sea foods, fruits, vegetables, and iodized salts. Body needs iodine to synthesize thyroid hormones, and these hormones helping in the control body metabolism, and other functions. Thyroid hormone is also playing an important role in brain, and bone development during infancy.
Thyroid gland have ability to transport iodide (concentrate) from blood which is required for produced thyroid hormones. In this process sodium-iodide symporter is playing the key role to transport iodine molecules into the cell.
Answer:
0% (none)
Explanation:
The female drosophila is heterozygous for X-linked recessive mutation. An X-linked recessive mutation is expressed in females only when present in the homozygous state. Therefore, the female progeny should have two copies of the mutant allele to express this mutation. Let's suppose that the genotype of the heterozygous female is X^cX and that of the male is XY. The cross would obtain progeny in following ratio=
X^cX x XY= 1/4 X^cX: 1/4 XX: 1/4 X^cY: 1/4 XY
Since none of the female progeny is homozygous recessive (X^cX^c), the cross would not obtain any female progeny expressing the X-linked recessive mutation.
Answer:
DNA ligases
DNA kinases
Explanation:
DNA kinases are enzymes responsible for the regulation of many biological phenomena. By covalently attaching a phosphate group to its target (phosphorylation) a kinase is able to regulate a particular biological reaction. Kinases are virtually involved in almost every signal transduction pathway occurring in a living cell.
DNA ligases are commercially available. Optimally active in the range 45 to 80°C. These enzymes are perfect for ligating adjacent oligonucleotides that are hybridized to the same target DNA. This property can be used for ligase chain reaction ,for mutational analysis, or for gene synthesis.
Answer:
A hypothesis becomes a theory with proper evidence.
Explanation:
A hypothesis is untested and subjective while a theory is tested and objective. A hypothesis will become a theory when it is tested and proven with facts and evidence that support the hypothesis.