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Allisa [31]
2 years ago
8

To which part of a dna molecule are nucleotides added?

Biology
1 answer:
TEA [102]2 years ago
3 0

Answer:

Nucleotides are exclusively added to the 3' end of the developing strand when DNA is produced in the 5'-to-3' orientation. The 5'-phosphate group of the new nucleotide attaches to the 3'-OH group of the final nucleotide of the developing strand.

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Mendel's law of independent assortment states that which allele is passed down to the next generation at one locus is dependent
dlinn [17]

Answer:

False

Explanation:

Mendel's law of independent assortment is about the random distribution of alleles of one gene during anaphase-I. It states that alleles of two or more genes segregate randomly to the poles of the cell. For example, the segregation of R and r alleles to the two poles of the cell would not affect the segregation of the T and t alleles. This random and independent segregation of alleles of different genes during anaphase-I produces new gene combinations in the progeny.

5 0
3 years ago
1. a molecule that serves to make reactions work vesicles 2. tiny sacs in the cell that may contain starch enzyme 3. packets wit
slamgirl [31]
1. Enzyme is the molecule that serves to make reactions work. Enzymes are biochemical catalysts that catalyses chemical reactions in a cell by acting on substrates and convert them to products. Their rate of action increases with increase in substrate concentration, reaching optimum when all active sites of the enzyme are engaged.

2. Plastid are the tiny sacs in the cell that may contain starch. Plastid are major cell organelles found in the cells of plants and algae. Plastids are site for the manufacture and storage of important  chemical compounds used by the cell. They often contain pigments used in photosynthesis, and the types of pigments present can change or determine cells color.

3. Lysosome are packets within the cell that contain digestive enzymes. Lysosomes are one of many organelles found in animal cells. they are tiny like sacs filled with enzymes that enables the cell to process nutrients. They contain digestive enzymes which helps in the digestion of worn out organelles, food particles and engulfed viruses or bacteria.

4. Mitochondrion is a structure within a cell that is responsible for production of energy. Energy in a cell is produced through a process of cellular respiration which involves use of nutrients with oxygen gas to yield energy inform of ATP, water and carbon dioxide. The process takes place in the mitochondrion where oxygen acts as proton acceptor in the electron transport chain coupled by production of energy.

5. An Organelle is a small structure that serves specialized functions. A cell is made up of various organelles that help it perform its functions. Each organelle is specialized to perform as specific function different from other organelles, for example ribosomes is an organelle involved in the manufacture of proteins.

6. Golgi apparatus are group of flattened sacs that package and export materials out of the cell. Golgi apparatus also called golgi complex or golgi body, is a membrane bound organelle in eukaryotic cells that is made up by a series of flattened, stacked pouches called cisternae. They are responsible for transporting, modifying, and packaging proteins and lipids into vesicles.

7. Vesicles are tiny sacs connected to the Endoplasmic reticulum and Golgi apparatus. Vesicles are small structures within a cell, or extracellular, consisting of fluid enclosed by a lipid bi-layer. they form naturally during the process of secretion (exocytosis), uptake (endocytosis) and transport of materials within the cytoplasm.
5 0
3 years ago
Read 2 more answers
Which fat has only single bonds between the carbon atoms in the fatty acid?
mote1985 [20]
<span>Saturated fatty acids are those that have all single bonds except for the keto carbon of the carboxylic group. Unsaturated fatty acids are those that at least have one double bond between the carbons. If the fatty acid has only one double bond, it is referred to as monounsaturated.</span>
3 0
3 years ago
Read 2 more answers
Water vapor is important because it helps air hold: PLEASE HELP THIS IS A QUIZ. and please dont answer if u dont know the answer
neonofarm [45]

Answer: D. Heat

Explanation : Water Vapor is a source of warmth, since the heat that is radiated from Earth is absorbed by the water vapor. This is why greenhouses use water vapor as well.

7 0
2 years ago
What helped scientist recognize that the earth was a million years old
Dmitry [639]
Clues such as fossils such as bones, footprints, tar, etc,  preserved underground helped inform scientists. You can also count how old a tree is when you cut it open and there are some alive for thousands of years so that is a possible way.
3 0
3 years ago
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