1 - A patient of alkaptonuria can be recognized by the:
Both of these things
2 - A person of blood group - AB can donate his blood to a person of blood group:
AB
3 - A person of blood group AB can receive blood from donor of:
All group
4 - A person of blood group O can donate his blood to persons of blood groups:
A, B, AB & O
5 - A son must be born to a couple when:
The zygote composition has XY combination
6 - ABO Blood groups were discovered by:
Lansteiner
7 - Absence of melanin is termed:
Albinism
8 - Agglutinins are not found in the blood group:
AB
9 - Agglutinogens are not found in the blood group:
O
10 - Agglutiongens are absent in the blood of the blood group:
O
11 - Albinism is a:
Hereditory disease
12 - Albinism is exhibited by:
Pink skin, pink eyes and white hairs
13 - Albinism is:
Recessive
14 - Albinos are reported only in:
Both (a) & (b)
15 - Alkaptonuria is an inborn biochemical disorder in which the person excretes:
Homogentisic acid
16 - Allele is the:
Total number of genes present on a chromosome
17 - An autosome means:
A sex chromosome
18 - Apart from transfusion of blood, the blood groups are also important in:
Settling paternity disputes
19 - Average ratio of men and women in human population is:
1.1
20 - Cause of red-green colour blindness is:
Inheritance
21 - Colour blindness and night blindness are:
Dissimilar because former is sex-linked while later is due to deficiency of vit. A
22 - Colour blindness generally affects males but factor for it is transmitted to boys through mother, this is because the factor is located on:
X-chromosome
23 - Colour blindness in man is a:
Sex-linked disorder
24 - Correct situation of chromosomes in man is:
44 autosomes + 2 sex chromosomes
25 - Daltonian disease is:
Colour blindness or haemophilia
26 - Dizygotic twins are:
Fraternal
27 - During mismatched blood transfusion:
RBC of donor agglutinate
28 - Erythroblastosis foetalis in developing embry is caused by:
Haemolysis
29 - Even if the donor and recipient belong to same blood group the transfusion of blood leads to agglutination some time this is due to the fact that:
One is Rh+ and other is rh-
30 - Even though donor A and recipient B have same blood group, transfusion leads to agglutination. This is due to the fact that:
A is Rh+ and B rh-
31 - For a patient of AB - group a donor can be of:
Any of ABO - groups
32 - For a person of blood group -A, the blood groups acceptable for transfusion are:
A&O
33 - For a recipient belonging to blood group A the appropriate donor must belong to group:
O&A
34 - For a recipient of blood group O the appropriate donor is person belonging to blood group:
O
35 - Fraternal twins are produced when:
Two ova are fertilized simulataneously by two different sperms
36 - Haemophilia affects generally males because it is:
Recessive X-linked
37 - Haemophilia is a disease in which there occurs:
Failure of blood coagulation
38 - Haemophilia is caused by the deficiency of:
Thromboplastin
39 - Hereditory characters are passed from parent to offspring chiefly through:
Genes
40 - Heterozygous woman and man for pigmentation would have:
Some normal some albino
41 - Homologous chromosomes include:
One chromosome from each parent
42 - How much percent people lack ability to taste PTC:
0.3
43 - Human ovum has got:
One X chromosome
44 - Identical twins are born when:
Fertilized egg after 1st cleavage divides into two separate blastomeres
45 - Identical twins are those which are formed by:
Complete separation of two blastomeres formed by 1st cleavage
46 - Identical twins develop from:
A single fertilized egg whose blastomeres separating after 1st cleavage
47 - If a haemophilic father marries a normal woman the children will be:
All normal
48 - If a normal woman marries an albino man and gets two normal and two albino sons then the woman is:
Heterozygous
49 - If a parent belongs to blood group A and other to B the offsprings can inherit:
All of the blood groups
50 - If a patient of blood group - B needs a transfusion, the donor must belong the blood group:
O & B
51 - If father of a body is haemophilic and mother a carrier, then chances of the body in inheriting the disease will be:
0.5
52 - If two opposite alleles come close together, one of the two finds morphological expression masking other in the body of the organism, the fact is described is:
Law of dominance
53 - In case of a baby of blood group A whose mother belongs to blood group B the father cannot be a person of blood group:
Both (a) & (b)
54 - In colour blindness the person fails to distinguish:
Only red and green colours
55 - In human beings which of these types of sex chromosomes are found:
Both XY chromosomes
56 - In pedigree analysis of which family 50 men were found to be excellent musicians out of 99 men among the descendents:
Bach family
57 - In phenylketonuria the conversion of phenylakanine is disturbed due to absence of the enzyme:
Phenylalanine hydroxylase
58 - In which of these disorders the accumulation of gentisie acid in joints cause arthritis::
Alkaptonuria
59 - In which of these situations the daughter of a colour blind fater can be colour blind:
If the mother is phenotypically normal but genotypically is carrier
60 - Incedence of ablinism is:
One per 20,000
61 - Karyotype of man can be represented by:
Both (a) & (b)
62 - Man has which of these numbers of chromosomes:
46
63 - Nature of identical twins is:
Monozygotic
64 - Normally sex-linkedgenes are located in X-chormosome in man this indicates that:
X chromosome is longer than Y
65 - One of the way of determining sex-linked inheritance is:
Sons resemble mother and the daughters the father
66 - Phenotype of phenylketonura shows:
All of these symptoms as mentioned baove
67 - Phenotypes in which of these conditions are called syndromes:
Aneuploidy
68 - PTC (phenylthiocarbamide) tastes:
Sweet
69 - Rh factor is associated with:
Blood transfusion and pregnancy
70 - Rh-factor was discovered by:
Both (a) & (b)
71 - Rh-factor was named on the basis of:
Rhesus monkey
72 - Role of Rh factor is in:
Both (a) & (b)
73 - Serum of person having blood group AB will have:
None of these
74 - Sex determination in human beings is of:
XY type
75 - Sex in human beings is deermined by:
Size of egg being fertilized
76 - Sex-linked characters are usually:
Recessive
77 - Sickle-cell anaemia is a case of:
Incomplete dominance
78 - Sickle-cell anaemia is due to:
Genes
79 - Sickle-cell anaemia is exhibited by:
Defect in beta-chain of haemoglobin
80 - Sickling of RBCs occurs in 50% of which of these:
Heterozygous forms
81 - Terms proband, proposita and sibiling are used:
All of these
82 - The fact that law of biology and genetics can also be applicable to human beings was brought to light by:
Garrod
83 - The father of a baby belonging to blood group -MN whose mother is of group -N the father cannot be
N
84 - Total number of autosomes in fertilized egg of man is:
44
85 - Traits controlled by X-chromosome are said to the:
Sex-linked disorder
86 - Twins formed by simultaneous fertilization of two different ova by two separate sperms are called:
Siameses twins
87 - Universal donor is a person of blood group:
O - group
88 - Urine of a person suffering from which of these disorders turns black on exposure to air:
One suffering from alkaptonuria
89 - What is the incedence of occurrence of phenylketonruia in human population?
One in 18,000
90 - Which blood group person may be called a universal acceptor or recipient?
AB
91 - Which of the blood can be given to any person:
O - group
92 - Which of these abbreviation sands for a genetic trait:
Rh
93 - Which of these disorders in genetically similar to haemophilia:
Colour blindness
94 - Which of these genotypes and phenotyes may be the correct result of aneuploidy in sex chromosomes:
22 pairs + XXY males
95 - Which of these is biologically incompatible marriage because of chances of Erythroblastosis foetalis:
Rh+ man and rh- woman
96 - Which of these is totally a genetic disorder:
Albinism
97 - Which one is universal recipient:
Person of AB - group
98 - Which one of these is sex-linked inheritance?
Colour blindness or haemophilia
99 - Who for the first time successfully interpreted alkaptonuria and phenylkeotnuia in man:
Garrod
100 - Who recommended pedigree analysis and twin study for determining human genetic traits:
Sir Francis Galton
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