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Are genes molecules or not?
Genes are not molecules themselves. They are segments of DNA that serve as instructions for making proteins. However, genes are encoded within molecules called DNA, which is a large, complex molecule that carries genetic information.
What are the complex molecules that contain hereditary information?
DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are the complex molecules that contain hereditary information in organisms. They are composed of nucleotide units that carry genetic instructions for the development, functioning, growth, and reproduction of all living organisms.
What is a complex molecule in the cell's chromosomes that carries genetic information?
DNA (deoxyribonucleic acid) is a complex molecule found in the cell's chromosomes that carries genetic information. DNA is composed of a double helix structure that contains the instructions for the development, functioning, growth, and reproduction of all living organisms.
What forms does DNA appears in the nucleus?
The nucleus contains chromosomes,which are visible as rod-shaped structures only when the cell is about to divide .Chromosomes contain information for inheritance of features from parents to next generation in the form of DNA (Deoxyribo Nucleic Acid) molecules. Chromosomes are composed of DNA and protein. DNA molecules contain the information necessary for constructing and organising cells.Functional segments are called genes. In a cell which is not dividing, this DNA is present as part of chromatin material.Chromatin material is visible as entangled mass of thread like structures. Whenever the cell is about to divide, the chromatin material gets organised into chromosomes.
What holds homologous chromosomes together?
Homologous chromosomes are held together by a protein structure called the synaptonemal complex during meiosis. This complex helps align the chromosomes and facilitate genetic recombination between homologous chromosomes.
The blank of chromosomes have nothing to do with how advanced or conplex an orginism is?
The number of chromosomes have nothing to do with how advanced or complex an organism is.
Do more-complex organisms always have more chromosomes than simpler organisms do.?
Chromosomes contain the genes or the DNA of all organisms. Being more complex, does not mean that you have more chromosomes, for example: a human being has 48 chromosomes while chickens and dogs both have 78.
What are the some complex food molecules?
Starch (polysaccharide), proteins, and lipids are some complex food molecules.
Do more complex organisms always have more chromosomes than than simpler organisms do?
More complex eukaryotes do not necessarily have more chromosomes than simpler eukaryotes do. An example from the Holt Science book is that fruit flies have 8 chromosomes, potatoes have 48, and humans have 46. The human cells are more complex, but they don't have quite as many chromosomes as potatoes!
What structures make up chromosomes?
Chromosomes are composed of DNA molecules tightly wound around proteins called histones. This DNA-protein complex is further condensed into chromatin fibers, which then coil and condense to form the recognizable X-shaped structures we see during cell division. Each chromosome contains a single linear DNA molecule that contains the genetic information of the organism.
What are large complex molecules formed by joining together many smaller molecules include?
Large complex molecules formed by joining together many smaller molecules include proteins, nucleic acids (DNA and RNA), polysaccharides, and lipids. These macromolecules play crucial roles in biological functions such as cell structure, energy storage, and genetic information storage.
Building complex molecules from less complex ones?
synthesis/catabolism
