Answer:
Replicated chromosomes at metaphase I = 66
Sister chromatids at metaphase I = 66 x 2 = 132
Sister chromatids at prophase II = 66
Chromosomes in each sperm cells = 33
Explanation:
Metaphase I of meiosis I would have 66 replicated chromosomes in the testicular cells of the bird. Each of the replicated chromosomes would have two sister chromatids. So, a total of 66 replicated chromosomes would have 66 x 2 = 132 sister chromatids.
Due to segregation of homologous chromosomes towards opposite poles in anaphase I, each daughter cell formed by the end of meiosis I would have 33 replicated chromosomes. So, each of the daughter cells would have a total 33 x 2 = 66 sister chromatids at prophase II.
Since meiosis II maintains the chromosome number, each sperm cell formed by the end of meiosis II would have 33 chromosomes.
There are 3 different charges in an atom; proton, electron, and neutron. protons are positively charged, electrons are negatively charged and neurons are when the atom has the same amount of protons and electrons in them, so 50 protons and 50 electrons in an atoms means that the atom is neutral. neutrons are created in a neutral atom, but when an electron leaves or enters a neutral atom, then its less stable.
Answer:
Yes, This can happen if both the parents are heterozygous.
Explanation:
To have a child with blood type O, both the parents should have at least one copy of allele "i". This is required since the genotype of a person with blood type O is "ii". Parents with blood type A and type B can have a child having blood type O. Here, the genotype of the parent with blood type A should by IAi which means that it is heterozygous in nature. Likewise, the parent with blood type B should have genotype IBi.
When a cold air mass moves toward a warmer air mass, it causes a cold front. The warm air rises, leaving colder temperatures in the region. On a weather map, a blue line with triangles represents the front.
Please look at diagram below.
The bacterial genus that is mannitol salt agar selective is Staphylococcus. Mannitol salt agar or known as MSA is often used in culture of certain bacteria since it is selective and is a differential growth medium. It would only encourage growth specific group of bacteria and inhibit other growth. It is very important in medical studies and laboratories as it is able to determine pathogenic microorganisms in a short time. It has a high amount of salt making it selective only to gram positive bacteria like the Staphylococcus and the Micrococcaceae. The salt level is about 7.5% to 10% which is inhibitory to many bacteria.