Answer:
The total number of possible combination of gametes formed through a particular genotype can be found by using the formula 2ⁿ, where n is the number of dissimilar or heterozygous allele pairs present in the given genotype.
For example, if the given genotype TtYyRR there are 2 allele pairs which are present in heterozygous condition.
So, possible combination of gametes would be 2² = 4.
All the possible combinations would be:
Answer:
Genetic diversity is important because it helps maintain the health of a population because a diverse set of alleles that can be valuable in resisting diseases, pests and other stresses. If the environment changes, a population that has a higher variability of alleles will be better able to evolve to adapt to the new environment and therefore survive longer. Hope this helps!
Answer:
B. allows processes as growing and repair tissues in the body.
Explanation:
Mitosis is a process where a single cell divides into two identical daughter cells. During mitosis one cell divides once to form two identical cells and the dividing cell's chromosomes are copied and then distributed equally between the two new nuclei of the daughter cells.
The major purpose of mitosis is for growth and to replace worn out cells. It also plays an important part in the development of embryos.
Mitosis is divided into five stages:
1. Interphase- during interphase, the DNA in the cell is copied resulting in two identical sets of chromosomes. Microtubules also extend from the centrosomes outside the nucleus
2. Prophase- during this phase, the sister chromatids in each chromosome pair up, the nuclear membrane dissolves and the mitotic spindle consisting of microtubules and other proteins extend across the cell between the centrioles which move to opposite ends of the cell.
3. Metaphase- the chromosomes line up at the centre of the cell and the mitotix spindle attaches to eachmof the sister c hromatids.
4. Anaphase- the sister chtomatids are pulled apart to each end of the cell by the mitotic spindle.
5. Telophase- at each pole, a full set of chromosomes gather together, a membrane encloses each chromosome, the cell pinches at the middle and then divides into two. This is known as cytokinesis.
Answer:
Correct, DNA is a negatively charged nucleic acid. This is because the phosphates present in the sugar-phosphate backbone are negative and hence, make the DNA acidic. That is why DNA is called deoxyribonucleic acid
In tests like gel electrophoresis, the DNA will move towards the positive end of the gel. This is because positive attracts the negative. A DNA sample can be separated on the basis of the negativity it possesses.
1.about 16
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3.The air popper can pop 5.6 cups of popcorn in one minute, while the oil popper can only do 4.6 cups of popcorn
4.Answer: There are more molecules in a gram of water.
Explanation: Specific heat is the heat required by 1 gram of a substance to raise its temperature by .
As the specific heat of water (4.186 J/g°C) is more than that of ethanol (2.450 J/g°C) it means more energy is required to raise the temperature of a gram of water by 1°C. Which means the molecules are tightly bound and thus more molecules are contained in a gram of water.
Q= heat gained
m= mass of the substance
c = heat capacity
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