The three important features proposed by Watson and Crick are as follows:
- a phosphate group
- a deoxyribose sugar
- a single nitrogen-containing base
<h3>How is the structure of DNA formed?</h3>
DNA is a biological molecule that stores genetic information in living cells.
The structure of these DNA molecule was built and proposed by a duo scientist named James Watson and Francis Crick in the 1950s.
However, they determined three important features of the DNA molecule and are as follows:
- a phosphate group
- a deoxyribose sugar
- a single nitrogen-containing base
Learn more about DNA molecule at: brainly.com/question/264225
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Answer:
it is a substance and it is a liquid
The answer is A. When doing crosses with Punnett squares, two heterozygous individuals will produce one dominant, two heterozygous, and one recessive. The genotypic ratio would be 25% PP 50% Pp and 25% pp. The phenotypic ratio would be 75% polka-dot tail and 25% solid-colored tail. Since Pp has a dominant in it, it overshadows the recessive so 25% and 50% added would be 75%.
<span>The correct answer is Sexual Reproduction. Unlike cell division, sexual reproduction creates new offsprings instead of copies of the biological parents and there is a time period that takes for the fetus to mature and grow inside the womb before birth. Unlike this, cell division is easy and fast and just creates a copy of the previous cell.</span>
The cell membrane is a selectively permeable membrane which controls what goes in and out to ensure that not just anything comes in through it's own accord.
