Answer:
a. Centromere
A centromere is a specialised DNA sequence of a chromosome that links pair of sister chromarids (a dyad)
<span>Polydactyly in its most common form, is an autosomal dominant mutation. Let's represent the mutation as P and the normal state as +. Thus, if both parents are heterozygous (P+), both would have the mutation (and thus have six fingered). They have 3/4 chances of having a child with the extra digit, 1/4 normal. </span>
Answer:
It fuses with and becomes part of the plasma membrane.
Explanation:
Exocytosis -
Exocytosis is the process of expelling out the substances from the cell . It also helps in the cell transport and cell signalling process .
In this process a large amount of molecule are released and making it a form of the bulk transport .
In this process , the secretory vesicles are then carried to membrane of the cell and then their contents are secreted into the extracellular environment .
The gene responsible for producing amyloid precursor protein (app) appears to explain the development of Alzheimer disease.
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- A form of dementia that progresses is Alzheimer's disease. A condition that adversely impacts memory, thinking, and behavior is referred to as dementia. The modifications make daily life more difficult. There are numerous possible causes of dementia, including diseases and brain traumas. Sometimes there is no known cause. The condition is typically diagnosed in patients over the age of 65.
- Alzheimer's disease is typically described as having an "early onset" or "younger onset" if it is discovered earlier. Alzheimer's has no known cure, but there are medications that can halt the disease's growth. Alzheimer's disease is a brain ailment that gradually impairs thinking and memory abilities as well as the capacity to do even the most basic tasks. Additionally, psychological and behavioral changes are common in people with Alzheimer's.
Learn more about Alzheimer disease here:
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Answer:
In biology, symbiotic nitrogen-fixing bacteria invade the root hairs of host plants where increment or multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. The bacteria that change nitrogen gas from the atmosphere into solid nitrogen usable by plants are called nitrogen-fixing bacteria. These bacteria are found both in the soil and in symbiotic relationship with plants.
Explanation:
