Select each of the characteristics that are key features of genetic material.

It must differentiate in each cell type.
It must encode the blueprint to form proteins and other structures.
It must be able to replicate and transmit to progeny.
It must have heritable traits that can be passed to offspring.
It must be variable through infrequent mutation.

The key characteristics of a genetic material are : ( B , C , E )

Genetic materials are the hereditary materials present in the cells of organisms which carries all the information related to a specific organism and it is known as DNA or RNA  

Therefore we can conclude some of the characteristic of genetic material are as follows It must encode the blueprint to form proteins and other structures, It must be able to replicate and transmit to progeny and It must be variable through infrequent mutation.

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It must encode the blueprint to form proteins and other structures.

It must be able to replicate and transmit to progeny.

It must have heritable traits that can be passed to offspring.

Explanation:

The genetic material in most living cells is stored as Deoxyribosenucleic acid (DNA). It is one of the two types of nucleic acids that are made up of nucleotide subunits, the other one being RNA.

Every genetic material in living organisms consists of segments called GENES that encodes the formation of functional products e.g protein and RNA. These gene undergoes expression to be converted to what it encodes.

Another attribute the genetic material should possess is the ability to double it's content during cellular division in order for each daughter cell to receive an equal and correct amount of it. This duplication of genetic material occurs during the S phase of the interphase stage.

The genetic material (genes) must be able to hold information and pass the genetic traits to the offspring during reproduction.

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.

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explanation:

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