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Inherited Characters

HLA IS A GROU...

Question

HLA IS A GROUP OF -
1. PROTEINS
2. GENES
3. POLYPEPTIDES
4. CHROMOSOMES

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Solution

2) Genes

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Q. HLA is group of

Q. Select the statements that describe characteristics of genes.
(i) Genes are specific sequence of bases in a DNA molecule.
(ii) A gene does not code for proteins.
(iii) In individuals of a given species, a specific gene is located on a particular chromosome.
(iv) Each chromosome has only one gene.

Q. Which of the following gene is responsible for synthesis of a polypeptide chain that do not serve as regulatory protein?

Q. Assertion: Number of chromosomes in one genome is equal to number of linkage groups.

Reason: Linkage groups give important information about the location of genes in the chromosomes.

Read the passage and answer the following question.

The genes that code for the human leukocyte antigen(HLA) antigens, also known as the major histocompatibility complex(MHC) genes, are all located on human chromosome

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. Two brothers and a sister participated in a bone marrow donor registration, and their HLA typing results are given.

ID	HLA-A	HLA-B	HLA-C	HLA-DR
$1$	A $1$ , A $3$	B $5$ , B $7$	C $3$ , Cw $19$	DR $3$ , DR $9$
$2$	A $1$ , A $6$	B $2$ , B $6$	C $2$ , C $16$	DR $4$ , DR $13$
$3$	A $1$ , A $6$	B $2$ , B $6$	C $2$ , C $16$	DR $4$ , DR $13$

What is your explanation for the single HLA-A result for sibling

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