Answer: Each chromosome actually consists of two sister chromatids, which are joined together at a centromere. ... During this process, sister chromatids separate from each other and move to opposite poles of the cell. This happens in four phases, called prophase, metaphase, anaphase, and telophase. Homologous chromosomes are two pieces of DNA within a diploid organism which carry the same genes, one from each parental source. In simpler terms, both of your parents provide a complete genome. Each parent provides the same 23 chromosomes, which encode the same genes. Sister chromatids are two identical copies of the same chromosome formed by DNA replication, attached to each other by a structure called the centromere. During cell division, they are separated from each other, and each daughter cell receives one copy of the chromosome. Spindle fibers are filaments that form the mitotic spindle in cell division, i.e. mitosis and meiosis. They are chiefly involved in moving and segregating the chromosomes during nuclear division. Spindle fibers are made up of microtubules. In meiosis. Each pair of chromosomes—called a tetrad, or a bivalent—consists of four chromatids. At this point, the homologous chromosomes exchange genetic material by the process of crossing over (see linkage group). The tetrad occurs during the first phase of meiosis. It is the foursome of chromatids that forms when replicated homologous chromosomes align. It must be formed for crossing over to occur. It is broken apart when the homologous chromosomes separate in meiosis I.
Explanation:
The answer is 1.9 millimeters.
Solution
To get the mL value, you have to multiply the following:
(18.6 kg)(<span>5 mg/kg)(3mL/150mg)=mL
The technique here is that you have to think of isolating the unit you are finding and then you have to find a way that you can divide the units until you will find your needed unit. In the solution, you can see that kg/kg=1 and mg/mg=1 so the only unit left is mL. There you can get your answer. Don't be confused by the reciprocal of 150mg/3mL because it is only to get your needed answer.</span>
Respiration is a process of exchanging gas.
Answer:
point mutation missense mutation silent mutation non sense mutation
Explanation:
point mutation it change one base of DNA in this case nucleotide substitution occur like sickle cell missense mutation in this case replacement of one nucleotide nonsense mutation cause the replacement of codon silent mutation does not change the sequence of protein because of new triplets codes for the same amino acid
