Could be the sun but that's just me
Answer:
The process of erosion uses weather, water, and plants to break down the ground on earth so that craters become virtually nothing. ... The Earth's gravity is stronger than the moon's, so it attracts more space debris than the moon does.
Primarily because earths' atmosphere disintegrates many meteorites before they reach the Earth. Secondarily because earth's more active tectonic motions delete them
Explanation:
The third codon (three bases) in the sequence was mutated from GAT to AAT. The GAT codon translates to the amino acid aspartic acid. The AAT codon translates to the amino acid asparagine. This is what's called a point mutation, specifically a missense mutation since the translated amino acid is changed. Deletion and inversion mutations are not the answer because these mutations involve the chromosomes as a whole, not just bases. Frame shift mutations occur when 1 or 2 (but not 3) bases are added or deleted from the sequence causing an array of point mutations (domino effect).
Answer: B. S cycle
Explanation: The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA.
Answer:
undergo irreversible repression
Explanation:
Cellular differentiation refers to the process by which one cell and/or cell population divides and differentiates into more specialized cells. During cell fate differentiation, epigenetic marks modify chromatin structure in order to hamper the accessibility of the transcriptional machinery and transcriptional factors to different genes, which are irreversibly repressed. These epigenetic marks include DNA methylation and histone modifications (e.g., histone acetylation, histone methylation, etc). For example, it has been shown that DNA methylation and histone H3 lysine 27 tri‐methylation (H3K27me3) are epigenetic repressive marks on genomic regions that play a major role in gene expression programs during cell fate differentiation.
