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The two identical portions that are attached by their centromere are known as?
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cromatids
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What guides the chromosomes movement during mitosis?
chromosomes are attached to what is known as the spindle fibre via the centromere. the centromere is normally towards the middle or the chromosome and is where the two sister chromotids join (so the centre of the x shape). the spindle fibre is made up of tubulin and is pulled to the poles of the cell (taking the chromosome with it) by the centrioles.
Identical genetic copies are known as?
clones
When all the units are identical except for position the design principle is known as?
Repetition
The process through which a genetically identical cell or organism is produced is known as what?
coloning
What are the different types of chromosomes based on position of centromer?
The different types of chromosomes based on the position of centromere are(i) Metacentric : In this type of chromosome the centromere is present at the centre. All four arms of chromatids are equal in length.(2) Submetacentric : In this type of chromosome the centromere is situated slightly away from centre. So on one side two arms are long while another side two arms are short.(3) Acrocentric : In this type of chromosome the centromere is located near the end and hence two arms are very long while two arms are very short. Some times on the distal end of short arms the small filamentous structure is present which possesses a round structure on its lip. This part is known as satellite. The short filament which connects satellite with short arm is known as nucleolar organiser region.(4) Telocentric : In this type of chromosome the centromere is situated at the tip of chromosome and hence two arms are located only on one side.
What guides the chromosomes movement during mitosis?
chromosomes are attached to what is known as the spindle fibre via the centromere. the centromere is normally towards the middle or the chromosome and is where the two sister chromotids join (so the centre of the x shape). the spindle fibre is made up of tubulin and is pulled to the poles of the cell (taking the chromosome with it) by the centrioles.
What is difference between chromosome and chromatids?
A chromatid is one-half of two identical copies of a replicated chromosome. During cell division, the identical copies are joined together at the region of the chromosome called the centromere. They are known as sister chromatids. Once the paired sister chromatids separate from one another in anaphase of mitosis, each is known as a daughter chromosome. [source: About.com/Biology, see link below]
A structure having two chromatids held together at a centromere?
The structure having two chromatids held together at a centromere is known as the kinetochore. These are commonly found in the DNA.
What is Beth's Cafe in Seattle known for?
Humongous portions
Identical genetic copies are known as?
clones
What does a pair of homologous mean?
Those chromosomes having pairs of approximately the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci are known to be homologous chromosomes. One homologous chromosome is inherited from the organism's mother; the other from the organism's father. They are usually not identical, but carry the same type of information.
Which plane divides the heart into anterior and posterior portions?
The frontal (also known as coronal) seperates the heart into anterior and posterior portions.
Where was Hawaii attached to before it was an island?
it was attached to what is now known as the united states
The fact that an organism's offspring are not identical is known as?
inherited variation
Is it possible for two people to have the same combination of genetic traits?
Yes. Monozygotic twins, also known as identical twins, are genetically identical because they come from the same zygote (fertilized ovum). Early on, during cell reproduction to form the embryo, the cells separate into two groups, which form two embryos genetically identical to one another. Therefore, they would have the same combination of genes and genetic traits. There are also cases of identical triplets, quadruplets, and quintuplets, all of which came from a single zygote, and are therefore genetically identical. The first known identical quintuplets to survive infancy were the Dionne quintuplets, born in Canada in1934.Yes. Monozygotic twins, also known as identical twins, are genetically identical because they come from the same zygote. Therefore, they would have the same combination of genetic traits. There are also cases of identical triplets, quadruplets, and quintuplets.
When all the units are identical except for position the design principle is known as?
Repetition
The process through which a genetically identical cell or organism is produced is known as what?
coloning
