Answer:
Separation of sister chromatids and centromeres.
Explanation:
Once chromosomes align along equatorial plate during metaphase of mitosis, the next step of mitosis is separation of the sister chromatids and the centromeres. The separation of sister chromatids and the centromeres occurs during anaphase of mitosis. During this phase, spindle fibres which are produced from centrioles in the centrosome at two opposite poles of the cell, attach to the centromere region of the chromosomes and drag each sister chromatid of the chromosome apart towards opposite pole of the cell. This is how each opposite pole receives one chromatid from each chromosome. Later during telpophase of mitosis, cytokinesis occurs which produces two daughter cells with equal number of chromatids.
The glass would work the best.
Answer:
Gen lac z: codifies the enzyme β-galactosidase, that hydrolyzes lactose in glucose and galactose.
The other two structural genes are lacy, which is a permease that helps to transfer lactose into the cell. Finally, lacA is a trans-acetylase.
Also, the operon counts with a promoter, that is the region recognized by the RNA polymerase. An Operator region, that is recognized by the LacI repressor, and the repressor gen lacL.
Answer: the leaves will start turning yellow and the stem or stalk will grow longer towards the direction of sunlight.
Explanation: lack of enough sunlight causes plant leaves to loose chlorophyll (the green pigment responsible for photosynthesis). Also auxin; a plant growth hormone will be secreted in the stem to stimulate growth towards the direction of sunlight.