A. That is the correct answer.
Answer:
miRNAs are involved in A. transcriptional silencing
Explanation:
MiRNAs are single-stranded RNAs that are involved in gene regulation. This type of RNA allows the silencing of genes through complementarity with a transcribed RNA, thus promoting their degradation and reducing their translation levels.
I - xylem - transports water and minerals from roots to all parts of plant
Il - pith
lll - phloem - transports food from leaves to all parts of plant
ANSWER: Administration of a blood transfusion
EXPLANATION:
Aplastic crisis is a potentially deadly complication of sickle cell disease that develops when erythrocyte production temporarily drops. Infection with parvovirus B-19 frequently causes aplastic crises (Saarinen et al., 1986).
Aplastic crisis may be associated with extensive bone marrow necrosis as well as acute selective erythroblastopenia
Immediate management is usually supportive involving mainly BLOOD TRANSFUSION to build up hematocrit level.
In the long term, bone marrow transplant to stimulate new cell growth is usually suggested.
Properties of matter. solid, liquid, gas.
atoms. tiny particles that make up matter.
volume. amount of space that matter takes up.
mass. the amount of matter an object has.
