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What two things do karyotypes show?
Different chromosomes can be easily identified in a karyotype.
What is the name for a part of an organism consisting of a large number of cells having similar structure and function?
That part of an organism is called a tissue. Tissues are groups of cells that work together to perform a specific function in the body.
How many coiled DNA molecules has an S phase have at the end?
At the end of the S phase, each DNA molecule is duplicated and consists of two coiled sister chromatids. This results in each chromosome having two identical copies of DNA.
What is homosygous?
Homozygous refers to an individual having two identical alleles for a particular gene, one inherited from each parent. This means that the individual will express the same trait associated with that gene since there is no variation in the alleles.
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.
Why are Chromosomes called Double Chromosomes?
After DNA replication, there are double the number of chromosomes, which will be divided into two identical daughter nuclei during mitosis. For example, a normal human body cell has 46 chromosomes. When it undergoes DNA replication, the chromosomes are doubled so that there will be 92 chromosomes, consisting of 46 pairs of sister chromatids. During mitosis, the sister chromatids separate into two identical daughter nuclei, each having 46 chromosomes.
How is chromosome and chromatids related?
Chromatin is intertwinted mass of fine thread-like structure made of DNA and protein. During cell division (mitosis and meiosis), chromatin condenses to form thicker rod-like structures called chromosomes. Each chromosome consists of two similar halves called chromatids. Formation of chromosomes having two similar halves or chromatids is meant for equitable distribution of chromatin which is hereditary material.
How are chromosome and chromatids related?
Chromatin is intertwinted mass of fine thread-like structure made of DNA and protein. During cell division (mitosis and meiosis), chromatin condenses to form thicker rod-like structures called chromosomes. Each chromosome consists of two similar halves called chromatids. Formation of chromosomes having two similar halves or chromatids is meant for equitable distribution of chromatin which is hereditary material.
Chromatin and chromosomes similarities?
Chromatin is intertwinted mass of fine thread-like structure made of DNA and protein. During cell division (mitosis and meiosis), chromatin condenses to form thicker rod-like structures called chromosomes. Each chromosome consists of two similar halves called chromatids. Formation of chromosomes having two similar halves or chromatids is meant for equitable distribution of chromatin which is hereditary material.
What does chromatin have to do with chromosomes?
Chromatin is intertwinted mass of fine thread-like structure made of DNA and protein. During cell division (mitosis and meiosis), chromatin condenses to form thicker rod-like structures called chromosomes. Each chromosome consists of two similar halves called chromatids. Formation of chromosomes having two similar halves or chromatids is meant for equitable distribution of chromatin which is hereditary material.
What is a good sentence for unpalatable?
The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.The very idea of having to work together was unpalatable to him.
What are all the disease proteins having no structure?
All proteins have structure.
What is the structure of human?
The function of the human structure is to survive by having children.
What is the difference between monad dyad and tetrad?
Chromosomes come in 2 forms, depending on the stage of the cell cycle. The monad form consists of a single chromatid, a single piece of DNA containing a centromere and telomeres at the ends. The dyad form consists of 2 identical chromatids (sister chromatids) attached together at the centromere. Chromosomes are in the dyad form before mitosis, and in the monad form after mitosis. The dyad form is the result of DNA replication: a single piece of DNA (the monad chromosome) replicated to form 2 identical DNA molecules (the 2 chromatids of the dyad chromosome). a tetrad is a pair of homologous chromosomes that have replicated and come together in prophase I of meiosis; and consists of four chromatids.
What structure of the atom has been described as having a dense center that contains subatomic particles?
The structure of the atom that has been described as having a dense center that contains subatomic particles is the nucleus. The nucleus is composed of positively charged protons and neutral neutrons, tightly packed together in the center of the atom.
What is the function of human structure?
The function of the human structure is to survive by having children.
What two things do karyotypes show?
Different chromosomes can be easily identified in a karyotype.
