What is a gene? the different forms of a trait

Biology

1 answer:

Sergeeva-Olga [200]2 years ago

6 0

Answer:

A gene is the basic physical unit of heredity. Genes are made up of a sequence of DNA and carry all the information needed to make us who we are. Genes are passed from parent to child in a specific sequence that decides our traits. Will you be short or tall, have straight hair or curly hair, blue eyes or green?, are a few examples of physical traits.

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For a couple of decades, biologists knew the nucleus contained DNA and proteins. The prevailing opinion was that the genetic mat

o-na [289]

Answer:

For a couple of decades, biologists knew the nucleus contained DNA and proteins. The prevailing opinion was that the genetic material was proteins, and not DNA. The reason for this belief was that proteins are more complex than DNA. This is because: <u>proteins have a greater variety of three-dimensional forms than does DNA.</u>

Explanation:

Protiens have a greater variety of three dimensional forms than does the DNA

Protiens contain one or more polypeptides which are usually arranged in one of the following structures :

1)Primary structure

2) Secondary structure

3) Tertiary structure

4) Quaternary structure

These structures are maintained by Hydrogen bonding , Hydrophobic interactions , Disulphide bonds and ionic bonds )

DNA on the other hand is a double stranded molecule containing only hydrogen bonds between the nitrogenous bases and the covalent bonds within nucleotides. It is much simpler than protiens.

4 0

4 years ago

I can’t not solve this please helppp!!

Assoli18 [71]

If the father had the blood type B then the child would have one of these blood types: AA, AB, AO, BO
None of these blood types is B thus the man is not the father

I’m not sure about the answer but I believe he’s not the father