0
What is the term for chromosomes line up randomly during metaphase therefor it is possible for any combination of chromosomes to be passed on from parent to offerings?
Wiki User
∙ 6y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why do you need to count chromosomes during mitosis?
It is possible to count chromosomes only during vell division (mitosis or meiosis). This is because when the cell is not dividing the chromosomes are in an uncoiled, extended state and are not visible under the microscope. During cell division the chromosomes coil up, becoming shorter and thicker and so visible. At this time they can be counted.
Why is variation not possible in mitotic division of cells?
Mitosis does not lead to the formation of chromosomes with new combination. In meiosis as a result of crossing over, chromosomes with new combinations are formed which are responsible for variation.
7th grade The eight steps of meiosis?
Prophase I: chromosomes start to condense and become visibleMetaphase I: homologous chromosomes line up at equatorial plateAnaphase I: homologous chromosomes separate and move to diferent polesTelophase I: one set of chromosomes arrive at each poleProphase II: chromosomes condense againMetaphase II: individual chromosome line up at equatorial plateAnaphase II: centromere divides, and chromosomes (from chromatids) move to different polesTelophase II: one set of chromosome arrive at each pole.
How do chromosomes and genes play a role in the genetic variation of offspring?
DNA contain many genes. and with 2 different parents with many different genes and traits of their own, the number of possible combination is enormous
If an organism had 4 pairs of chromosomes how many different gametes can it produce?
For a species with three pair of chromosomes how many gametic combinations are possible?
Is the combination of two X chromosomes possible?
Yes. This is the combination for female sex.
How many metaphase alignments are possible in humans?
223
Why do you need to count chromosomes during mitosis?
It is possible to count chromosomes only during vell division (mitosis or meiosis). This is because when the cell is not dividing the chromosomes are in an uncoiled, extended state and are not visible under the microscope. During cell division the chromosomes coil up, becoming shorter and thicker and so visible. At this time they can be counted.
Why is variation not possible in mitotic division of cells?
Mitosis does not lead to the formation of chromosomes with new combination. In meiosis as a result of crossing over, chromosomes with new combinations are formed which are responsible for variation.
Is it possible to distinguish individual chromosomes after telophase?
No, after telophase (a.k.a. during interphase) the chromosomes entangle as they replicate however it does again become possible for individual chromosomes to be distinguished in prophase as the chromosomes begin to 'coil up' or condense.
Can you see chromosomes in x ray?
No it is not possible
Why is it not possible for an individual to have a XY chromosomes?
About half of us DO have an XY chromosome. Males. XX chromosomes are female.
Is it possible to get back lost y chromosomes in men?
No.
How are chromosomes analyzed within a karyotype?
A karyotype is the characteristic chrosome complement of a eukaryotic species. The preparation and study of karyotypes is part of cytogenetics. In normal diploid organisms, autosomal chromosomes are present in two identical copies. There may, or may not, be sex chrosome. Polyploid cells have multiple copies of chromosomes and haploid cells have single copies. The study of whole sets of chromosomes is sometimes known as karyology. The chromosomes are depicted (by rearranging a microphotograph) in a standard format known as a karyogram or idiogram: in pairs, ordered by size and position of centromere for chromosomes of the same size. The study of karyotypes is made possible by staining: usually a suitable dye is applied after cells have been arrested during cell division by a solution of colchicine Sometimes observations may be made on non-dividing (interphase) cells. The sex of an unborn foetus can be determined by observation of interphase cells.
What discovery that chromosomes are involved in inheritance was made possible by the invention of the?
microscope
7th grade The eight steps of meiosis?
Prophase I: chromosomes start to condense and become visibleMetaphase I: homologous chromosomes line up at equatorial plateAnaphase I: homologous chromosomes separate and move to diferent polesTelophase I: one set of chromosomes arrive at each poleProphase II: chromosomes condense againMetaphase II: individual chromosome line up at equatorial plateAnaphase II: centromere divides, and chromosomes (from chromatids) move to different polesTelophase II: one set of chromosome arrive at each pole.
How do chromosomes and genes play a role in the genetic variation of offspring?
DNA contain many genes. and with 2 different parents with many different genes and traits of their own, the number of possible combination is enormous
