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Nuclear Division in which the chromosome is reduced from 2n to n is part of the life cycle of all organisms except molds ferns insects bacteria or protozoans?
Nuclear division where the chromosome is reduced from 2n to n is a characteristic of the life cycle of all organisms, including molds, ferns, insects, bacteria, and protozoans. This process, known as meiosis, is essential for the production of gametes (sex cells) with half the number of chromosomes, ensuring genetic diversity in offspring.
Does the chromosome number changes throughout the human life cycle?
No, the number of chromosomes remains constant throughout the human life cycle. Human cells have 46 chromosomes, with 23 inherited from each parent. This number is maintained through cell division and reproduction.
In the plant life cycle meiosis occurs during the production of?
In the plant life cycle, meiosis occurs during the production of spores in the sporophyte generation. This process reduces the chromosome number by half, leading to the formation of haploid spores, which then develop into the gametophyte generation. The gametophyte produces gametes through mitosis, completing the cycle when fertilization occurs and forms a new diploid sporophyte.
What A bacteriophage injects its DNA into an E. coli cell which gets integrated into the bacterial chromosome forming a prophage. What kind of life cycle the bacteriophage is undergoing?
The bacteriophage is undergoing a lysogenic life cycle. In this process, the phage DNA integrates into the bacterial chromosome, forming a prophage, which can remain dormant and replicate along with the host cell's DNA during cell division. This allows the viral genetic material to be passed on to daughter cells without causing immediate lysis of the bacteria. The lysogenic cycle can eventually switch to the lytic cycle under certain conditions, leading to the production of new phage particles and cell lysis.
Can you live with a y-chromosome and no x-chromosome?
No. The human X chromosome contains over 1000 genes, many of which are essential for life. The Y chromosome in comparison has only about 120 genes. A zygote with Y0 or YY (one or two Y chromosomes) would not be viable.
During a cells life when do chromosome duplicate?
in the interphase
In a cells life cycle when to chromosomes duplicate?
Interphase
How long do the chicken life cycle repeat itself?
hi! chickens`s life cycle repaets once.
Which event occurring in the life cycle of a bacterium most directly involves the replication of DNA?
the bacterium copies its single chromosome
How does the chromosome number of the amibea in stage 1 compare to an amobea in stage 3?
The chromosome number remains the same throughout the stages of an amoeba's life cycle. Amoebas are unicellular organisms with a constant chromosome number, typically haploid.
Can you do a life cycle on an ephants?
The life cycle on an elephant stars with mating and then the female becomes pregnant. After birth, the young one is nursed until it becomes sexually mature and the cycle repeats itself.
What chromosomes are present in peach aphids at various times of the life cycle?
The chromosomes present in the life cycle are all the same, it's just the genes represented that change. Of note, however, is that the males of the aphid species have one less chromosome.
Nuclear Division in which the chromosome is reduced from 2n to n is part of the life cycle of all organisms except molds ferns insects bacteria or protozoans?
Nuclear division where the chromosome is reduced from 2n to n is a characteristic of the life cycle of all organisms, including molds, ferns, insects, bacteria, and protozoans. This process, known as meiosis, is essential for the production of gametes (sex cells) with half the number of chromosomes, ensuring genetic diversity in offspring.
What is the difference between Systems Development Life Cycle from prototyping model?
The systems development life cycle has three different systems within itself. It can be hardware only, software only, or a combination of both. This differs from the prototype.
What is a real life example of a chromosomes?
A chromosome is an essential part of real life. You would not have life without chromosomes!
How does the alternation of Meiosis and fertilization in the life cycle of sexually reproducing organisms maintain normal chromosome count for each species?
Simple, Meiosis reduce the chromosome number in half while fertilization doubles the chromosome number. n=chromosome number Meiosis = 2n (primordial germ cells) ----> n (sperm cell/egg cell/polar bodies) Fertilization = sperm (n) + egg (n) ----> 2n (zygote)
Does the chromosome number changes throughout the human life cycle?
No, the number of chromosomes remains constant throughout the human life cycle. Human cells have 46 chromosomes, with 23 inherited from each parent. This number is maintained through cell division and reproduction.
