Briefly explain why you have two of every gene.

Biology

2 answers:

erastova [34]3 years ago

8 0

Answer:

because each parent gives you 1 chromosome

Explanation:

SashulF [63]3 years ago

4 0

Since diploid organisms have two copies of each chromosome, they have two of each gene. Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles. This is important because alleles can be dominant, recessive, or codominant to each other.

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Plant and animal cells are both eakaryetic cells and have many cell organisms in common. However the cells do have differences

denis-greek [22]

Answer:

Certain cell organelles are present only in plant cells like chloroplast and certain only in animal cell like centrioles.

Explanation:

The concept can be explained in three stages:

Organelles only in plant cells- Chloroplast is an organelle which is helpful in photosynthesis. Since animals don't perform photosynthesis, they don't need it. Plant cells also have a cell wall on top of a cell membrane.
Organelles only in animal cell- Centrioles are present in animal cells which help in movement through structures like flagella and cilia.
Organelles present in both plant and animal cells- Ribosomes, nucleus,mitochondria, golgi complex, cell vacuoles, lysosomes are present in both plant and animal cells.

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3 years ago

Explain the importance of decomposrs to the overall biogechemical cycle

Ksivusya [100]

Decompose and release to the nutrients to the sources.

The micro-organisms decompose the dead and decaying organic matters. The nutrients are absorbed from soil or atmosphere by the plants. During the absorption these nutrients are depleted from the sources.

From the plants, these nutrients are transferred to the animals at different tropic levels. After the death of plants and animals are decomposed by micro-organisms and release the nutrients to the sources which finally maintain the biogeochemical cycle of nitrogen, Sulphur etc.

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3 years ago

Energy expended from fidgeting is called __________. energy expended from fidgeting is called __________. non-exercise activity

9966 [12]

The answer is the non-exercise activity thermogenesis. Energy expended from fidgeting is called the non exercise activity thermogenesis (neat). Basal metabolic rate is the energy expended to support metabolism. Thermic effect of food (tef) is the energy expended for the digestion, absorption, and metabolism of nutrients.

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4 years ago

(1) Cell membranes (plasma membranes) help organisms maintain__________ homeostasis by controlling what substances may enter or

Marianna [84]

Answer:

Explanation:

Active cellular transport:

It is the movement of molecules against the concentration gradient (from low concentration to high).
Active transport requires expense of energy supplied by ATP.
It is a rapid way to transport of large sized molecules.

Passive cellular transport:

It is the movement of molecules along the concentration gradient (from high concentration to low).
Passive transport does not require expense of energy.
It is a slow process and small sized molecules get transprorted.

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3 years ago

What happens to a muscle cell when there is a shortage of oxygen being supplied to it?

Eva8 [605]

Cellular respiration is the process in which your muscles use oxygen to produce ATP energy. The process is simple. Your body obtains oxygen from the ambient air you breathe. It enters the blood stream and is carried to your muscles, where some of it is used immediately, and the rest is stored by a compound called myoglobin. Whether you’re exercising or not, the oxygen in your body is used to break down glucose and create the fuel for your muscles called ATP.

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3 years ago