Answer:
C) increase the frequency of mutations in all genes
Explanation:
François Jacob and Jacques Monod carried out a series of experiments during their studies on the regulation of gene expression in <em>E. coli</em>. They exposed the <em>E. coli</em> cells with ultraviolet light or X-rays to allow mutations in all the genes to investigate the nature of enzyme synthesis in <em>E. coli</em>. They observed that some enzymes are synthesized continuously. They called those enzymes the constitutive enzymes. On the other hand, some enzymes were synthesized only when required by the cell.
Their further experiments included selective mutation of specific regulatory genes to observe the effect on the expression of other genes.
Answer: B Co-dominant alleles
Explanation: The coat of a roan cow consists of both red and white because the two alleles are codominant. Codominance occurs when two alleles outwardly express themselves equally. In codominance, neither of the allele is completely dominant rather they are equally dominant. None is able to mask the effect of the other. The two alleles express themselves equally in the phenotype of the organism. This means that in a roan cow, the allele for white fur is dominant and the allele for red fur is equally dominant, thus they manifested equally as a mixture of both red and white furs.
Answer:
its because of there capacity to differentiate
Answer:
a graph title, “Temperature vs. Volume”
a label for the vertical axis, “Volume (cm³)”
units for the horizontal axis
Explanation:
edge 2020
Oh god, large question. My eyes hurt... Mitosis is the formation of 2 identical daughter cells (cell division). Mitosis have 5 phrases: interphase, prometaphase, prophase, metaphase, anaphase, telophase and cytokinesis. The chromosomes are duplicated during the cell life just before mitosis since mitosis states that it is the splitting of the cells so duplicating the chromosomes isn't actually mitosis but it is still important to mitosis. Anyway, in interphase, the nucleolus starts to disappear, the microtubule starts to form and the chromosomes start to condense. In pro metaphase, some of the microtubule connect to the centromere, the cell membrane fully disappear and the chromosomes finishes condensing. In metaphase, the chromosomes are pulled to the center of the cell via by the contraction of the spindles and 2 spindles are connected to each of the kinetochores. In anaphase, the chromatids are separated via by the spindles. In Telophase, the nuclear membrane reappears, the chromosomes un-condenses and the micro tubal breaks down. In Cytokinesis, the cell membrane in one cell breaks apart from the other cell forming 2 daughter cells or in plant cells, another cell wall is formed. (this process can differ fro each different organism)
