In the nucleus of each cell, the DNA molecule (which determines traits) is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. Chromosomes are not visible in the cell's nucleus-not even under a microscope-when the cell is not dividing. Chromosomes are not always visible because they usually are uncoiled inside the nucleus as loose strands called chromatin. When it is time for the cell toperform meiosis or mitosis, they condense and wrap up tightly. The tightly wound DNA is the chromosome (3). Most of what researchers know about chromosomes was learned by observing chromosomes during cell division (1).
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chromosomes are filamentous structures which are present in the nucleus as chromatin reticulum and are visible only during cell division..this is what i know about choromos..lol
Chromosomes are essential in inheritance because they contain the genetic material, DNA, that carries the instructions for making proteins and determining an organism's traits. Through the process of meiosis, chromosomes are passed from parents to offspring, ensuring that genetic information is transmitted accurately. Genetic disorders resulting from chromosomal abnormalities further highlight the importance of chromosomes in inheritance.
Chromosomes
A lobster has 100 chromosomes. Humans have 46 chromosomes, the same as a lizard. A dog has 78 chromosomes, and a fly has 12 chromosomes.
No, sex chromosomes are not referred to as homozygous chromosomes. Homozygous chromosomes have identical alleles at a specific gene locus, while sex chromosomes determine an individual's biological sex. In humans, sex chromosomes include X and Y chromosomes.
Chromosomes decide the gender of the child.
chromosomes are filamentous structures which are present in the nucleus as chromatin reticulum and are visible only during cell division..this is what i know about choromos..lol
The overall importance of chromosomes is that they contain genetic information, DNA, which is used as a plan to create every component of the human body. Generally speaking, DNA codes for all genes and regulatory elements. Essentiallly, chromosomes carry the instructions for new cell creation, cell division, and how every minute detail should be.
Chromosomes are essential in inheritance because they contain the genetic material, DNA, that carries the instructions for making proteins and determining an organism's traits. Through the process of meiosis, chromosomes are passed from parents to offspring, ensuring that genetic information is transmitted accurately. Genetic disorders resulting from chromosomal abnormalities further highlight the importance of chromosomes in inheritance.
Chromosomes
this is where the genes are mixed up, and it allows genes to be exchanged across chromosomes and randomizes the assortment of chromosomes to the offspring.
R. G. Beilharz has written: 'The importance of the sex-chromosome in quantitative inheritance' -- subject(s): Heredity, Sex chromosomes
homologous chromosomes and autosomal chromosomes
Interphase - As the cell prepares for mitosis, the chromosomes replicate during the S phase of interphase.Prophase - The replicated chromatids begin to coil into recognizable chromosomes; the nuclear membrane fragments; centrioles move to form the cell's poles; spindle fibers form; nucleolus disintegrates.Metaphase - Chromosomes attach to spindle fibers at their centromeres and then move to the equator.Anaphase - Chromatids, now called daughter chromosomes, separate toward the poles.Telophase - The nuclear membranes and nucleoli re-form; spindle fibers fragment; the chromosomes unwind and change from chromosomes to chromatin.Daughter Cells: Cytokinesis occurs and twoRead more: What_is_happening_on_each_stages_of_mitosis
A lobster has 100 chromosomes. Humans have 46 chromosomes, the same as a lizard. A dog has 78 chromosomes, and a fly has 12 chromosomes.
No, sex chromosomes are not referred to as homozygous chromosomes. Homozygous chromosomes have identical alleles at a specific gene locus, while sex chromosomes determine an individual's biological sex. In humans, sex chromosomes include X and Y chromosomes.
chromosomes