Answer:
Written below.
Explanation:
5. During meiosis, a reproductive cell and its nucleus divide twice and produce four cells––two pairs of identical haploid cells.
6. Homologous chromosomes are two pieces of DNA within a diploid organism that carry the same genes, one from each parental source. In simpler terms, both of your parents provide a complete genome. Each parent provides the same 23 chromosomes, which encode the same genes.
Answers
When doing medical research with human subjects, the following are unavoidable limitations;
It’s often impossible to repeat trials on the same subjects.
Subjects may report an inaccurate medical history.
It can be difficult to control all possible variables
There are ethical or privacy concerns to consider.
Explanation
When doing a medical research that involves human subjects it should be voluntary, informed and consent. The researchers should respect the persons treated as autonomous agents. The volunteers should be protected from physical, mental and emotional harm. The benefits should outweigh the costs.
Answer:
homologous structure
Explanation:
those organs which have the same basic structure but have different functions are known as homologous organs/structures.
Answer: True
Explanation:
The dual energy x-ray absorptimetry is a technique that is used for measuring the bone mineral density. This technique utilizes the two X-ray beams with different levels of energy. The soft tissues are subtracted in this procedure and the beam is absorbed by the bone. This technique is useful for diagnosis of osteoporosis, to check and diagnose the infected, fractured and healing bones.
Fluid retention is a condition in which excess fluid due to capillary leakage or any other reason fills up inside the circulatory system, body tissues and cavities. The following symptoms will appear:
Discolored skin, aches and tenderness in the limbs, stiffness in joints and weight gain.
The retained excess fluid may react with the X-ray beam hence, will interfere in the process of diagnosis. Thus caution should be taken for such individuals.
Answer :
Mitochondria contain membrane folds called cristae, whereas chloroplasts contain disklike vesicles in stacks called grana.
Explanation:
Mitochondria is the power house of the cell and as such, they are found in all living cells where as chloroplast is only found in plant cells.
Mitochondria does not convert light energy from the sun to chemical energy. It only coverts one form of chemical energy to the other. Chloroplast stores solar energy for further use
