Nucleotides are the monomers of DNA. They consist of five-carbon sugar deoxyribose, a phosphate group and a nitrogenous base attached to the sugar. Nucleotides including adenine A thymine T guanine G and cytosine C are available.
DNA monomers or nucleotides can bind phosphates and sugars on the outside and nitrogenous bases on the inside where they can bind to other nitrogenous bases to form a ladder. DNA is a polymer. The monomeric units of DNA are nucleotides and the polymers are known as polynucleotides.
Monomers are small mostly organic molecules that can combine with other similar molecules to form very large molecules or polymers. All monomers have the ability to form chemical bonds with at least two other monomer molecules. The unique structure of DNA allows the molecule to replicate itself during cell division. When a cell prepares to divide, the DNA helix splits in the middle and becomes two single strands.
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Answer:
B. Waves transfer both matter and energy.
Explanation:
When waves travel through water, the moving water particles continue to return to their starting position because waves transfer both matter and energy.
Jellyfish should reproduce sexually if genetic variation is needed in order to survive in the change in environment.
Jellyfish should reproduce sexually if genetic variation is needed by the organism leading to more adaptations to the natural environment. There is no variation between offspring in asexual reproduction.
It involves single parent not two parents so their chances of survival against change of environment while on the other hand, offspring produced from sexual reproduction having variations that leads to higher chance of survival.
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C because they eat the things they find that are dead so they get the nutrients and stay somewhat healthy.
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Answer:
Explanation:
The descriptions describes some of the events that takes place in the mitosis and meiosis cell division process.
A cell divides to produce two daughter cells that are genetically identical. ____. This describes mitosis
Homologous chromosomes synapse and crossing over occurs. ____ . this happens in meiosis I only
14. Centromeres uncouple and chromatids are separated from each other - this happens in mitosis and meiosis II.
15. Independent assortment of chromosomes occurs. _ this happens in meiosis I only.
16. The process is preceded by replication of the DNA. ___. This happens in mitosis and meiosis II.