Identical twins are produced when
Identical twins are produced when
- A
One fertilized egg divided into 2 blastomeres and both separate
- B
One sperm fertilizes two eggs
- C
One egg fertilized with two sperms
- D
Two eggs are fertilized
Similar Questions
Chromosomal theory of inheritance was proposed by
Chromosomal theory of inheritance was proposed by
Who gave first experimental evidence of the polygenic concept of inheritance
Who gave first experimental evidence of the polygenic concept of inheritance
How many nucleosomes are found in helical coil of $30\ nm$ chromatin fibre
How many nucleosomes are found in helical coil of $30\ nm$ chromatin fibre
Mendel published his work on inheritance of characters in $1865$ but it remained unrecognised till $1900$ because
$(a)$ He could not provide any physical proof for the existence of factors
$(b)$ His concept of factors as stable, discrete units that controlled the expression of traits did not find acceptance from the contemporaries
$(c)$ Mendel's approach of using mathematics to explain biological phenomena was totally old
$(d)$ Communication was not easy (as it is now)
Mendel published his work on inheritance of characters in $1865$ but it remained unrecognised till $1900$ because
$(a)$ He could not provide any physical proof for the existence of factors
$(b)$ His concept of factors as stable, discrete units that controlled the expression of traits did not find acceptance from the contemporaries
$(c)$ Mendel's approach of using mathematics to explain biological phenomena was totally old
$(d)$ Communication was not easy (as it is now)
In Lathyrus odoratus, hybrid blue flowered and long pollen plant is test crossed with homozygous recessive red flowered and round pollen plant then how many parental types are obtained when genes are present in cis stage in parents?
In Lathyrus odoratus, hybrid blue flowered and long pollen plant is test crossed with homozygous recessive red flowered and round pollen plant then how many parental types are obtained when genes are present in cis stage in parents?