Your group engineers mutant lamin that cannot be phosphorylated, synthesizes the protein in a test tube, and injects it into a cell just before it enters mitosis. Assuming the injection itself does not affect the cell's division, you predict that the likely effect(s) of this experimental treatment would be to: (Multiple answers can be correct)I. block the duplication and migration of centriolesII. prevent the complementary base-pairing required for accurate DNA replicationIII. cause the condensin molecules to initiate chromatin coiling prematurelyIV. cause telomerase to produce a different sequence at the ends of the chromosomesV. prevent the breakdown of the nuclear envelope

Plz ! ive been stuck on this forever

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

Rease is an enzyme used by plants to break down urea (a nitrogen-containing compound) into carbon dioxide and ammonia. urease urea > > > carbon dioxide and ammonia ammonia is broken down by plants into a nitrogen source plants need to grow. thus, plants could not use urea as a nitrogen source unless it was first converted to ammonia. in soybean plants there are two different kinds of urease, one produced in the seeds and the other produced in the leaves of the plant. three types of soybean plants were used in a set of experiments: normal soybeans and two mutant strains, one lacking the urease in the seeds only (strain 1) and one lacking urease in the leaves only (strain 2). experiment 1 separate areas in a field were planted with normal, strain 1, and strain 2 soybeans. all types of soybeans appeared to grow, flower, and produce seeds equally well. there were no externally detectable differences among the strains. experiment 2 small pieces of plant leaves of equal weight were obtained from each type of soybean plant and separately placed on media in culture dishes. tissue growing in this way will become an unorganized clump of cells referred to as callus. to provide a controlled nitrogen source, half the tissue samples of each type were placed on media containing urea, and the other half of the samples were placed on media containing ammonia. after 30 days, the weight gain for each of the callus samples was determined. results are shown in the table below.