Microorganisms that entered the flask before it was sealed
Bacteria Cant Come Out Of Nowhere It Needs An External Source
The right answer is metaphase II.
The process is performed in two nuclear and cytoplasmic divisions, called first and second meiotic division or simply meiosis I and meiosis II. Both include prophase, metaphase, anaphase, and telophase. First division prophase is long and consists of 5 stages: leptotene, zygotene, pachytene, diplotene, and diakinesis. It is at this point that genetic recombination takes place at the level of chiasmus.
During meiosis I, the members of each homologous pair of chromosomes are paired during prophase, forming bivalents. During this phase, a protein structure, called synaptonemal complex form, allows recombination between homologous chromosomes. Subsequently, a large condensation of the bivalent chromosomes occurs and go to the metaphase plate during the first metaphase, resulting in the migration of n chromosomes to each of the poles during the first anaphase. This reduction division is responsible for maintaining the number of chromosomes characteristic of each species.
In meiosis II, as in mitosis, the sister chromatids comprising each chromosome are separated and distributed between the nuclei of the daughter cells. Between these two successive steps, there is no DNA replication. The maturation of the daughter cells will result in the gametes.
B
Natural explanation helps to explain why some life forms survive and some do not, and this links to the theory of evolution because the traits favored in natural selection become more dominant until the organism's entire population has evolved to incorporate that change.
<span>The use of genetically altered livestock, such as cows, goats, pigs, and chickens, to produce medically useful products is referred to as pharming. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that the answer has come to your help.</span>
Food and oxygen because plants give people food and oxygen... tree give people oxygen and fod
