Explanation:
DNA has three types of chemical component: phosphate, a sugar called deoxyribose, and four nitrogenous bases—adenine, guanine, cytosine, and thymine. Two of the bases, adenine and guanine, have a double-ring structure characteristic of a type of chemical called a purine.
Answer:
Microplastics are small plastic pieces less than five millimeters (0.2 inch) long which can be harmful to our ocean and aquatic life.
Explanation:
<span>The vesicoureteric junction</span>
Chromosome 7 may lose an end piece resulting in Williams syndrome, which is an example of a chromosomal deletion.
<h3>What is a chromosomal deletion?</h3>
A chromosomal deletion can be defined as a chromosome rearregement due to the loss of a fragment of the sequence of one chromosome, which leads to the loss of genetic material.
In conclusion, Chromosome 7 may lose an end piece resulting in Williams syndrome, which is an example of a chromosomal deletion.
Learn more about chromosomal deletions here:
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<h3><u>Answer;</u></h3>
There will be <u>4 different combination of chromosomes</u>
<h3><u>Explanation;</u></h3>
- <em><u>A diploid cell is a cell that contains two sets of each chromosomes; thus a diploid cell with two pairs of homologous chromosomes has four chromosomes.</u></em>
- <u><em>Gametes are produced through meiosis which is the type of cell division in which a parent cells divides into four daughter cells each with half the number of chromosomes as the parent, that is the cell are haploid.</em></u>
- Therefore,<em><u> </u></em><em><u>a diploid cell with two pair of homologous chromosomes will produce four haploid cells after meiosis each with two chromosomes.</u></em>
