The genetic base of the shape of orchid is very complex.
Mendelian traits are described as simple traits determined by one gene. The different alleles of the gene contribute to the difference in the trait. This is true for some traits in plants, animals including humans and other organisms, but not for the shape of orchids.
The shape of orchid flowers is determined by the ABCDE group of genes that are responsible for the body plan in plants. These genes are the equivalent of HOX genes of animals.
The protein products of different genes of the ABCDE group interact with each other in complex ways creating different shapes of orchids.
Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke.
Explanation:
The answer is D. The formation of protein can be divided into two major parts. First one is transcription which means converting the DNA to the mRNA. This takes place in the nucleus. And then the mRNA will be transported to ribosomes (A is not correct) and be translated to protein. This will take place in the cytoplasm. So the B and C is not correct. Vacuoles are in the plant cells.
<span>the chloroplasts absorb sunlight and store chemical energy</span>
Answer:
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Sincerely, hamborger69
Explanation:
Yeah it sucked I know but I hope it helps.
