The blastocyst implants itself to the uterine wall during 2 week after conception
The role of carbohydrates<span> is to provide energy, as they are the body's main source of fuel, needed for physical activity, brain </span>function<span> and operation of the organs. All the cells and tissues in your body need </span>carbs<span>, and they are also important for intestinal health and waste elimination.</span>
False, I'd say. Mammals usually adapt based on environment. Now, I know predators are "apart" of the environment, but I don't think that'd be it. I'd bet more money on saying mammals evolve based on environment adaptation. Sorry if I didn't answer your question or if I didn't get my point across well.
Answer:
See the answer below
Explanation:
Let the tallness be represented by T and the shortness by t.
True-breeding tall plant = TT
True-breeding short plant = tt
<em> TT x tt</em>
<em> Tt Tt Tt TT</em>
<u>Genotypic ratio of offspring</u>: 100% Tt
<u>Phenotypic ratio of offspring</u>: 100% tall (see the first attached image for the Punnet's square analysis)
(a)<em> See the second attached image for the Punnet's square analysis</em>.
<em> Tt x Tt</em>
<em> TT Tt Tt tt</em>
<u>Expected genotypes</u>
<u>Expected phenotypes</u>
(b) <em> Tt x tt</em>
<em> Tt Tt tt tt</em>
<u>Expected genotypes</u>
<u>Expected phenotypes</u>
The kind of cross if referred to as<u> test crossing</u>.
(c) <em>Tt x TT</em>
<em> TT TT Tt Tt</em>
<u>Expected genotypes</u>
<u>Expected phenotypes</u>
The similarity between the the DNA and RNA molecules is that both of them are long polymers and they are made up of nucleotides.
The differences between the two molecules are as follows:
1. The sugar components of the DNA molecule are deoxyriboses while the sugar components of the RNA molecules are riboses.
2. The nitrogenous bases in DNA molecule are adenine, guanine, thymine and cytosine while the nitrogenous bases in the DNA molecule are adenine, guanine, uracil and cytosine.
3. The back bone of the DNA molecule is made of the deoxyriboses and phosphate while the back bone of the RNA molecule is made up of riboses and phosphate.
