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homologous chromosomes are chromosomes where both alleles are the same, either both dominant or both recessive.
A chromosome is a thread-like structure in the cell nucleus that carries genetic information in the form of genes. Humans have 23 pairs of chromosomes, one set from each parent, which contain the instructions for how our bodies develop and function. Each species has a specific number and arrangement of chromosomes that determine its traits.
A chromosome is a structure containing DNA and various proteins in a nucleus. The proteins help organize and regulate the DNA molecule. The name literally means "colored body" referring to the fact that certain dyes bind to DNA and can be used to stain the chromosomes.
Note: scientific literature oftentimes refers to other forms of DNA molecules as chromosomes (which more correctly may be called plasmids, genophores, etc.).
A chromosome is packaged and organized chromatin, a complex of macromolecules found in cells, consisting of DNA, protein and RNA. The main information-carrying macromolecule is a single piece of coiled double-stranded DNA, containing many genes, regulatory elements and other non-coding DNA. The DNA-bound macromolecules are proteins, which serve to package the DNA and control its functions
A chromosome is a structure normally found in the nucleus of living cells and is made of nucleic acids and proteins. They carry genetic information in the form of genes.
Store ''Special Instructions'' and are only visible during reproduction.
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At the beginning of cell division DNA and the proteins associated with the DNA coil into a structure called an?
At the beginning of cell division, DNA and the proteins associated with the DNA coil into a structure called a chromosome. Chromosomes are visible under a microscope and contain the genetic material (DNA) of an organism.
What is a small circular segment of DNA found in many bacteria but separate from the bacterial chomosome?
A small circular segment of DNA found in bacteria, separate from the bacterial chromosome, is called a plasmid. Plasmids can carry non-essential genes that may provide advantages such as antibiotic resistance or the ability to metabolize certain nutrients. They can be transferred between bacteria through processes like conjugation, allowing for the spread of genetic traits.
Identify 3 causes of chromosomal disorders?
Chromosomal rearrangements, such as deletions, duplications, inversions, and translocations, can lead to chromosomal disorders. Errors in meiosis during gamete formation can result in abnormal chromosome numbers, such as trisomy (three copies) or monosomy (one copy). Exposure to environmental factors, such as radiation or certain chemicals, can increase the risk of chromosomal abnormalities.
What is allopolyploidy?
Allopolyploidy is a type of polyploidy where an organism contains multiple sets of chromosomes from different species. This can occur through hybridization between two different species followed by genome duplication. Allopolyploidy can result in increased genetic diversity and can contribute to speciation.
Can girls be colour blind?
Yes, girls can be color blind, but it is less common than in boys. This is because color blindness is usually inherited through a recessive gene located on the X chromosome, and boys only have one X chromosome. If a girl inherits a defective gene on one X chromosome, the other X chromosome may compensate for it, resulting in fewer cases of color blindness in girls.
Is chomosome found in plant or animail cell?
both. chromosomes are made of dna. they carry the genetic information of the cell
How does the structure of DNA allow the molecule to store information?
it is made up by chomosomes which is the dna sequence and takes place in every cell you have. but if one of the chomosome is missing it can make the person mutate
How does the structure of the DNA allow genetic information to be stored?
it is made up by chomosomes which is the dna sequence and takes place in every cell you have. but if one of the chomosome is missing it can make the person mutate
At the beginning of cell division DNA and the proteins associated with the DNA coil into a structure called an?
At the beginning of cell division, DNA and the proteins associated with the DNA coil into a structure called a chromosome. Chromosomes are visible under a microscope and contain the genetic material (DNA) of an organism.
How many of sex chomosome and autosome are in a human somatic cell?
A human somatic cell typically has 22 pairs of autosomes (44 autosomes) and 1 pair of sex chromosomes (2 sex chromosomes), totaling 46 chromosomes in total.
What are the specific names of autosomal chromosomes like sex chromosomes?
Y chromosome is autosomal dominant chromosome. When it is present, the sex of the child is male. When both the chromosomes are X, then the sex of the child is female. X chomosome is called as autosomal recessive chromosome.
What happens when the recessive allele is passed on to a boy?
Based on your history, you are probably talking about colorblindness, which is a disease inherited on the X chromosome. When it is passed on to a boy, the recessive allele shows itself because boys only have one X chromosome. Edited answer: Though recessive alleles do not express but if it adds to a deficiecy it is reflected in the boy, because only one X chromosome in present there, the other being Y chomosome which is almost enert.
What are chomosome?
Chromosomes are organized structures of DNA and proteins that are found in cells. A chromosome is a singular piece of DNA, which contains many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. The word chromosome comes from the Greek χρῶμα (chroma, color) and σῶμα (soma, body) due to their property of being stained very strongly by some dyes.
What is a small circular segment of DNA found in many bacteria but separate from the bacterial chomosome?
A small circular segment of DNA found in bacteria, separate from the bacterial chromosome, is called a plasmid. Plasmids can carry non-essential genes that may provide advantages such as antibiotic resistance or the ability to metabolize certain nutrients. They can be transferred between bacteria through processes like conjugation, allowing for the spread of genetic traits.
Why is it important for the chomosome to make copies of themselves BEFORE mitosis occurs?
It is important for chromosomes to make copies of themselves before mitosis to ensure that each daughter cell receives a complete set of genetic information. The copied chromosomes, known as sister chromatids, are then separated during mitosis to ensure equal distribution of genetic material to the two daughter cells. This process helps maintain genetic stability and prevents loss of important genetic information.
Identify 3 causes of chromosomal disorders?
Chromosomal rearrangements, such as deletions, duplications, inversions, and translocations, can lead to chromosomal disorders. Errors in meiosis during gamete formation can result in abnormal chromosome numbers, such as trisomy (three copies) or monosomy (one copy). Exposure to environmental factors, such as radiation or certain chemicals, can increase the risk of chromosomal abnormalities.
What sex would a person with trisomy X be - Explain?
Trisomy X aka "Triple X syndrome" is a disorder that affects females and is characterized by the presence of an additional X chromosome. Normally, females have two X chromosomes; however, females with trisomy X carry three X chromosomes in the nuclei of body cells. To be male requires a Y chomosome - which those with Trisomy X obviously lack.Trisomy refers to having an extra chromosome - 3 (tri-) instead of 2.Other types of gender related trisomy include:XXY Trisomy (Klinefelter syndrome) where males have an extra X chromosomeXYY Trisomy (or simply XYY karotype) is where males have an extra Y chromosome.
