A child is blood group is 'O'. His parents blood group can not be:-

Which of the following is not correct?

Which of the following symbols are used for representing sex chromosomes of birds:

XO type of sex determination and XY type of sex determination are examples of

Klinfelters' syndrome is characterized by a karyotype of

Mangolim is a genetic disorder which is caused by the presence of an extra chromosome number

The ........... deals with the control of several inherited human diseases especially inborn errors of metabolism

Which of the following is incorrect regarding ZW-ZZ type of sex determination?

Which of the following is true about Rh factor in the offspring of a parental combination Dd X Dd (both Rh positive)?

ABO blood group n man is controlled by

A child of O blood group, has B- blood father, the genotype of father would be:-

Which of the following phenotypes is not possible in the progeny of the parental genotypic combination IAIO X IAIB?

Females with Turners' syndrome have

Improvement of human race by encouraging the healthy persons to marry early and produce large number of children is called

Sickle cell anaemia induces due to

The condition in which only one allele of a pair is present in a diploid organism is known as

If one parent has blood group A and the other parent has blood group B. The off springs have which blood group:-

In which of the following sex is determined by female individual

Which chromosome set is found in male grass hopper:-

Who is the founder of Modern Eugenics movement?

Assertion: Inheritance is the basis of heredity.--Reason: Inheritance is the process by which characters are passed on from parent to progeny.

Father of a child is colorblind and mother is carrier for colourblindness, the probability of the child being colourblind is

Parents are carried for albinism. What will be the first three children:

Person having genotype IA, IB would show the blood group as AB. This is because of:

What can be the blood group of offspring when both parents have AB blood group?

ZW-ZZ system of sex determination occurs in

If a colour blind women marries with a normal man. The offspring will be:

In which of the following the inheritance takes place only by male:-

Assertion: Most of the X -linked disorders cannot be eliminated easily from nature and our gene pool.--Reason: X - linked disorders are due to recessive

Which one of the following character in man is controlled by recessive genes:

Sex - linked disorders are generally

A colour blind man married a normal lady whose father was colour blind. If it produces two sons & two daughters, how many of them would be suffer

Three children of a family have blood have blood group A,AB and B. What could be the genotypes of their parents?

How the sex of offspring determined in humans

Assertion: Sickle - cell anemia is caused by the substitution of glumatic acid by valine at the sixth position of the beta globin chain of the hemoglobin molecule.--Reason: It is due to the single based substitution at the sixth codon of the beta globin gene from GUG to GAG

In an accident there is great loss of blood and there is no time to analyse the blood group which blood can be safely transferred?

If the child's blood group is 'O' and fathers blood group is 'A' and mother's blood group is 'B' the genotype of the parents will be

ABO blood group is an example of

Pataus' syndrome is also referred to as

Male hetrogamy found in case of

If mother has blood group B' father has A group the offspring will be out:-

ABo blood group in humans are controlled by the gene I. It has three alleles - IAIB and IO. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur?

Mother and father of a person with 'O' blood group have 'A' and 'B' blood group respectively. What would be the genotype of both mother and father?

A marriage between a colourblind man and a normal woman produces

Haemophilia is more common in males because it is a

ZZ / ZW type of sex determination is seen in:

Which of the following phenotypes in the progeny are possible from the parental combination AxB?

If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is:

Co-dominant blood group is

A colourblind daughter is born when

Assertion: XO type, XY type & ZW type are the example of male heterogamety.--Reason:Male produces two types of sperms

AB-Blood group shows:-

Which of the following is not a sex linked characters

Assertion: Male is haploid and female is diploid in honey bee.--Reason: Sex depends on paired and unpaired chromosomes in every organism

"Universal Donor" and "Universal Recipients" blood group are ........... and .......... respectively

Which is a dominant trait:

Assertion: Multiple alleles can be found only when population studies are made.--Reason: Occasionally, a single gene product may produce more than one effect

If a colourblind woman marries a normal visioned man, their sons will be -