Product of evolution is:

Archaebacteria can survive at:

What was the source of hydrogen for first photosynthetic organisms?

Prokaryotes are considered to be evolved:

Adaptations that an organism acquires by its own actions are:

Which one is according to Lamarckism is true?

Unique fauna was observed by Darwin in:

Survival is only for the fittest is true for:

Functionally different but structurally alike organs are:

In Mendelism, the linkage was not observed due to:

A cross between plants having RRYY and rryy composition will yield plants with:

Self-cross between Tt and Tt plants results into the genotype ratio of:

When a tall plant with rounded seeds (TTRR) is crossed with a dwarf plant with wrinkled seeds (ttrr), then the generation consists of tall plants with rounded seeds. How many types of gametes a plant would produce?

The contrasting pair of alleles for all the seven traits chosen by Mendel showed:

Inheritance of ABO blood group system is an example of

Multiple alleles are the altered forms of a gene whose number is more than two and may have as many as 300 alleles, but a diploid organism can:

In humans, the polymorphic gene ‘I’ has three multiple alleles which are the result of:

The genotype of blood group ‘A’ can be:

A person with antigens ‘B’ present of membrane of RBCs and ‘anti-A’ antibodies in the blood plasma will have:

If a female has ‘A’ blood group and her husband has ‘O’ blood group, then the blood group of their children possibly be:

ABO blood grouping is controlled by gene I which has three alleles and show co-dominance. There are six genotypes. How many phenotypes are possible?

A man having a blood group O marries a woman having a blood group A whose father was also O. What is the probability of ‘O’ in their offspring?

Rh factor is named after:

Rh factor may be responsible for:

Which of the following will not result in variations among siblings?

All of the following can form a linkage group on human chromosome 11 except:

Genes A, B, C, and D are located on the same chromosome. The recombination frequencies (RF) are as follows:

What is the most likely order of the genes on the chromosome?

A couple has a baby boy, the chances of baby girl as a next child are:

How many chromosomes in human male and female are similar?

If a ‘Y’ carrying sperm fertilizes the egg the zygote will be:

_________ is male sex switch which triggers developmental process towards maleness.

Which one of the following conditions correctly describes the manner of determining the sex in the given example?

Drosophila has four pairs of chromosomes. How many linkage groups does it have?

Which of the following is not a genetic disorder?

Example of X-linked dominant trait is:

All of the following are non-allelic X-linked traits except:

What is the probability of a hemophilic daughter of a normal man whose father was hemophilic and a carrier woman?

Position of a gene on the chromosome is called its:

If all the members of a population are homozygous for the same allele, that allele is said to be: