its a theory because its not a fact, its one idea along with other ideas.
Answer: Eating excessive quantities of such molecules could deregulate this process, increasing methylation and repressing the expression of genes that should normally be expressed.
Explanation:
DNA methylation is one of the epigenetic mechanisms involved in the regulation of gene expression, because it is a process by which methyl groups are added to DNA.
Methylation then modifies the function of DNA when it is found in the promoter gene, it is essential for normal development and is associated with a number of key processes, including genomic imprinting, inactivation of the X chromosome, repression of repeating elements, aging, and carcinogenesis. Usually, <u>it acts to suppress gene transcription.</u>
For example, folic acid is essential for the rapid cell division that occurs during early fetal development and it also plays an important role in methylation and thus in gene regulation. <u>The metabolism of these vitamins is aimed at achieving adequate levels of DNA methylation, necessary for the cellular processes</u>. Eating excessive quantities of such molecules could deregulate this process, <u>increasing methylation and repressing the expression of genes that should normally be expressed</u>.
Which one is eligible to donate to the mom?? The daughter since O+ won’t cause a reaction. And Type O has no biased enzymes except the positive or negative. If that makes sense!?
Answer:
D. Antenna pigments allow more wavelengths of light and more photons to be captured, increasing the efficiency of light capture.
Explanation:
The photosynthetic pigments can be part of the antenna pigments or part of the reaction center. The role of the antenna pigments (large number of protein-bound pigment molecules) is to absorb photons and transfer their energy to the reaction center. Simply saying, antenna pigments are light-harvesting complexes. They are composed of polypeptides, that bind chlorophyll a, chlorophyll b, carotene and xanthophylls.
Answer:
The options are
a. A lack of estradiol.
b. Moderate levels of estradiol during an early stage of development.
c. A high level of testosterone during an early stage of development.
d. A high level of testosterone during the late part of puberty.
The answer is b. Moderate levels of estradiol during an early stage of development.
Testosterone is a hormone which is responsible for the secondary sexual characteristics of a male while estradiol is the hormone responsible for the secondary sexual characteristics of a female.
This is why estradiol is the hormone responsible in female development regardless of the chromosomes
