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What is it when sister chromatids can be seen for the first time?
Wiki User
∙ 11y ago
metaphase
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∙ 10y ago
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∙ 13y agoS phase
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What does DNA pictures under a microscope?
That is when the DNA is condensed, at which time it is called chromosome.
When did he see the proton for the first time?
Never. No one has ever actually seen a proton; they're too small.
What time of year can centaurus be seen?
centaurus can be seen may and june
What happens during the cross-over in meiosis?
This is done by one of Mum's chromosomes swapping a segment of DNA with one of Dad's chromosomes. In the first prophase of meiosis (prophase I) each chromosome contains two molecules of DNA. You can see these as the two sister-chromatids of each chromosome. During this prophase, each chromosome pairs with the corresponding chromosome from the other set. In other words, the chromosome 1 from the male parent aligns itself beside chromosome 1 from the female parent, the two copies of chromosome 2 do likewise, and so on. The two copies of one chromosome are called homologous chromosomes.Each pair of chromosomes is called a bivalent, and consists of four chromatids twisted around each other. At various points along this bivalent, two non-sister chromatids will break at the same locus (point along the DNA) and recombine, so that now a stretch of DNA from Mum has attached to a stretch from Dad, and vice versa. On average, this crossing-over happens three or four times along the length of a chromosome, so that one DNA molecule now consists of alternating segments from each parent. Because no two parents are genetically identical, the recombined DNA has a base sequence that is different from that supplied by either parent. It is like a linear mosaic. The positions of crossing-over are pretty well random, so every time meiosis takes place in one individual novel base sequences are generated.
When did the last Haley's Comet pass by?
Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.Earth never passed through Halley's Comet. It has been seen from Earth on many occasions. This happens about every 75 or 76 years. The last time was in 1986 and the next time it is expected to be seen from Earth will be in 2061.
What does DNA pictures under a microscope?
That is when the DNA is condensed, at which time it is called chromosome.
Should I get a chihuahua at the same time as my sister?
You should not buy it at the same time as your sister. Because if you do your sister's chihuahua will fight with yours. And you need to wait for your sister to buy it first because when you look at your sister's chihuahua you can decide which chihuahua is prettier
In 1901 which car was seen for the first time?
Porsche
How many chromosomes are present during prophase metaphase and telophase?
In prophase, there are 46 condensed chromosome pairs. The chromosomes replicated during S phase (Doubling the original 23 pairs) and now appear as two sister chromatids connected via the centromere. During metaphase, the kinetochores of the chromatids attach to the spindle fibers and the chromosomes have now moved into position along the metaphase plate (an imaginary division) and are roughly central in the cell. During anaphase the spindles begin pulling the chromatids apart from one another and telophase begins. During telophase, the nuclear envelopes of the cells to be forms. At this point it's a tad murky as the chromosomes are clearly separated but the cell has not yet made a complete divide. The division completes during cytokinesis beginning with the formation of a cleavage furrow will separate the cytoplasm and eventually yields two daughter cells. At this point the cell will have 23 chromosome pairs. The above is only true if we are talking about a somatic cell. If we are talking about a sex cell i.e a sperm or an egg then after the first meiotic division, there will be another one that follows the same processes as the first, only this time without the luxury of having undergone the replication during S phase and as such once cytokinesis finishes there will only be 23 single chromosomes in the given sex cell.
Is this sentence grammatically correct This is the first time you see it?
No, I think the correct way is- Is this the first time you've seen it?
How do you make a sentence with the word beleiving?
im believing in my sister for the first time
What was the date the Giant Panda was first seen?
The Giant Panda was first seen by ancient Asians. No written history exists from time that long ago.
When was Jesus first seen?
In his time, in the mid 1-30s A.D
Who saw an atom for the first time?
No one has ever seen an atom
What should you say to a girl that you have not seen in a long time the first time you call her?
lets get together
What was your favorite part of the deadly sister?
Did not watch it yet... Heard name for the first time...
Which is the process during meiotic cell division where there is a separation of homologous pairs of chromosomes?
Homologous chromosomes are chromosomes that carry genes that perform the same functions. Seperation of these chromosomes occurs during Mitosis where sister chromatids will be separated and pulled to opposite sides of a dividing cell. It also occurs during Meiosis 1 and 2 where in meiosis homologous chromosome pairs will line for the first time on the metaphase plate and be pulled to opposite sides of the cell and once again (without duplicating again) line up on the metaphase plate and be pulled to opposite ends of the cell. So the separation of homologous chromosomes happens in Meiosis stage 1 where you have a diploid organism with 4 copies of its chromatids and these homologous chromosomes (chromatids connected by a centromere) are pulled to opposite ends of the cell.
