Search results
cbiit.github.io
Chromosomes
- In multicellular organisms, chromosomes are found in the nucleus of the cell. Each of these chromosomes contains one, long molecule of DNA, or d eoxyribo n ucleic a cid. A gene is a specific stretch of this DNA molecule. Each chromosome in the cell contains many genes. Chromosomes are found in the nucleus of the cell.
www.khanacademy.org › science › ms-biology
People also ask
Which chromosome contains a specific molecule of DNA?
How many genes are in a chromosome?
What is a chromosome and a codon?
Where are genes found in a cell?
The genes that specify how to make each of the four proteins are split across two chromosomes. This means that each chromosome consists of two genes. Since the proteins specified by the genes all have four amino acid monomers, each gene must have four codons.
Genes consist of deoxyribonucleic acid (DNA). DNA contains the code, or blueprint, used to synthesize a protein or a ribonucleic acid (RNA) molecule. Genes vary in size, depending on the sizes of the proteins or RNA for which they code. Each DNA molecule is a long double helix that resembles a spiral staircase containing millions of steps.
Genes are pieces of hereditary material that are passed from parents to offspring. Genes are part of cell structures called chromosomes. In multicellular organisms, chromosomes are found in the nucleus of the cell. Each of these chromosomes contains one, long molecule of DNA, or d eoxyribo n ucleic a cid.
- How many genes are in a cell?Around 50,000 genes. There are also 24 chromosomes (groups of genes) in every cell.
- why do some kids look like there grandparerents?yeah like he said, you can look like just about any family member. genes get passed. even people back in the day that you were related to, just a s...
- I see many questions about genes and appearance, so I will try to explain some. Your gender (you bei...Thanks for sharing this. You might want to put each answer under its question, even though that could take more time. This post is technically in t...
- Why do some kids look like their dad more than there mom?According to a study published in Scientific American, babies tend to look more like their fathers than their mothers. This is because fathers are...
- if a cell can multipluy and the genes are in the cell do the genes multipluyYes, the genes do multiply, and the genes get cloned as part of the process. As people age, however, this process gets more difficult for the body,...
- can your DNA change through experimentsYes. DON'T try it, unless you're absolutely positively certain that you know what you're doing.
- How is DNA formed?DNA, or deoxyribonucleic acid, is formed through a process called DNA replication. DNA replication occurs during the cell division process known as...
- what's the difference between Adams and moleculesI think you mean atoms :) If you are talking about Adams, be informed that all things are made up of atoms, so all Adams are made up of atoms. If y...
- Can we change the genes of a person also after the birth?Gene therapy , or somatic gene editing, changes the DNA in cells of an adult or child to treat disease, or even to try to enhance that person in so...
Key points: Genes are specific stretches of a chromosome’s DNA molecule. DNA molecules are made up of smaller parts called nucleotides. So, a gene is a specific stretch of nucleotides within a chromosome’s DNA. DNA is made up of four types of nucleotides.
Oct 31, 2023 · Genes are composed of DNA arranged on chromosomes. Some genes encode structural or regulatory RNAs. Other genes encode proteins. Replication copies DNA; transcription uses DNA to make complementary RNAs; translation uses mRNAs to make proteins.
Jul 8, 2009 · Genes are small sections of the long chain of DNA. They are the basic physical and functional units of heredity. In humans, genes vary in size from a few hundred DNA bases to more than two million bases. The Human Genome Project has estimated that humans have between 20,000 and 25,000 genes.
Contained within the 3 billion letters of the human genome are about 21,000 genes. Most of our known genes code for proteins, but some code for RNA molecules. Your DNA makes you unique. All humans have the same genes arranged in the same order. And more than 99.9% of our DNA sequence is the same.
