It is given that the number of chromosomes present in each onion root tip cell is 16. Hence, the number of chromosomes in the cell will be 16 at G1 phase, after S phase and after M phase.
How many chromosomes will have cells of onion?
For example, each human cell possesses 46 chromosomes, while each cell of an onion possesses 8 chromosomes. All cells must replicate their DNA when dividing.
How many chromosomes will the onion root tip cell have at G1 phase after S-phase and after M phase if it has 16 chromosomes in mesophyll cell?
Answer: Explanation: For the first part: The number of chromosomes the cell will have after G1 phase is 16, after S phase is also 16 and after M phase the number of chromosome will be 32 (i.e. 16 in both daughter cell).
What animal has 32 chromosomes?
List of organisms by chromosome count
|Organism (Scientific name)||Chromosome number|
|American badger (Taxidea taxus)||32|
|Alfalfa (Medicago sativa)||32|
|Red fox (Vulpes vulpes)||34|
|Sunflower (Helianthus annuus)||34|
What is G1 phase in cell cycle?
Interphase. G1, S and G2 phases are all cumulatively referred to as interphase involving the growth of a cell and the replication of its DNA. Initially in G1 phase, the cell grows physically and increases the volume of both protein and organelles.
How many chromosomes will the cell have after M phase?
Question : How many chromosomes will the cell have at G_(1),after S and after M-phase respectively if it has 14 chromosomes at interphase. Replication of DNA takes place at S-phase of cell cycle. The number of chromosomes reduced only in meiosis. So, the number remain 14,14 and 14 in G1, after S and after M-phase.
Is anaphase G1 or G2?
The general steps of meiosis are: interphase (separated into G1, S, and G2 phases), prophase 1, metaphase 1, anaphase 1, telophase 1, prophase 2, metaphase 2, anaphase 2 and telophase 2.
How many chromosomes are in G1 and G2?
There are 46 individual chromosomes in each cell. After replication there are a total of 46 chromosomes, with 92 individual chromatids, in each cell. G2 Phase: During G2, the cell makes proteins that are used in cell division. One of the proteins will be used in the formation of microtubules.
Is anaphase a G1?
During anaphase, DNA is segregated into two which separates the nucleolus (black sphere) from DNA. … As nuclei finish their transition into G1 all proteins of the parental nucleolus are re-imported into daughter nuclei to form a new nucleolus within each daughter G1 nucleus.