Answer: Homo erectus DNA is too similar to ours to prevent contamination.
Explanation:
Homo erectus fossils are known as the oldest form of early humans that had human like body structure with shorter arms and elongated legs and shorter arms. These features gave them the ability to walk and also run long distances.
The reason that we do not have a genome sequenced from Homo erectus is that their DNA is too similar to ours to prevent contamination. There are enough fund which could have been used to carry out the research but their similarities to human beings has been the source of concern.
The correct answer is emphysema.
Emphysema is the enlargement of air sacs in the lungs.
It is a long-term, progressive disease of the lungs that primarily causes shortness of breath. People who have emphysema, their air sacs in the lungs (alveoli) is damaged. Over a period of time, the inner walls of the air sacs weaken and rupture creating larger spaces instead of many small ones. Normally, the lung tissue holds these small airways called bronchioles, open, allowing air to leave the lungs on exhalation. However, when the lung tissue is damaged like in the case of emphysema, these airway collapse, making it difficult for the lungs to empty and the air (gases) becomes trapped in the alveoli thus causing impaired gas exchange.
Answer:
Explanation:
(AZT) was the first antiretroviral drug used in HIV and AIDS. It is expensive and has several adverse effects including nausea, vomiting, blood problems and myopathy. The review of trials found that AZT does delay the early progression of HIV disease, but this improvement is not sustained. AZT alone does not increase survival for people without AIDS.
B. plants can begin to grow under snow, grow close to the ground, and flower quickly i think
Answer and Explanation:
A maternal impact quality is a quality the incipient organism doesn't express, rather, it is a quality the mother communicates, that by one way or another has an effect on the improvement of the hatchling. Models incorporate qualities that decide extremity of the incipient organism, and qualities that decide the body plan of the developing life, for example, bicoid in Drosophila, which decides head and thorax position.
The bicoid quality figures out which end is the front finish of the fetus. A homozygous transformed bicoid quality outcomes in the absence of foremost fragments, for example, mouth parts, head, and the initial two thoracic portions. It additionally brings about a hatchling creating two back closures (thus the name bicoid).
The phenotype of the hatchlings will be typical, since the mother is ordinary, and it is a maternal impact quality.
The descendants would be transformed as depicted above
