Question

Hey Mate

(•) Give a Brief Note on :-

( i ) Autosomal Traits

( ii ) Allosomal Traits

( iii ) Autosomal Recessive / Dominant

( iv ) Allosomal Recessive / Dominant

And how can I identify them in a Pedigree Chart !

# Please Explain Clearly with an Example !

Answer 1

Here Are your Answers:-
1> The autosomal chromosomes are the non sex chromosomes. ... Traitscarried on chrosomes 1-22 areautosomal traits. Traits carried on the X and Y chromosomes are sex linked traits. Not all traits on the X and Y chromosome are to do with sexualcharacteristics eg colour blindness is a trait found on the X chromosome.

2>Males have one X chromosome so the X-linked recessive traits are expressed in males. In females, the expression is masked if the second X chromosome contains a normal gene for the same trait. Common example of X-linkedrecessive trait is a blood clotting disorder called hemophilia.

3>Autosomal recessive is one of several ways that a trait, disorder, or disease can be passed down through families. An autosomal recessive disorder means two copies of an abnormal gene must be present in order for the disease or trait to develop

4>An allele is either said to be dominant or recessive. Dominant inheritance occurs when an abnormal gene from one parent causes disease even though the matching gene from the other parent is normal. The abnormal allele dominates. ... The Y chromosome carries about 78 genes

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Answer 2

Explanation:

I have explained with examples