Which one of the following disorders is a sex linked recessive disease?

Typical embryo sac at maturity is:

Read the passage carefully and answer the given questions. Recombinant DNA Technology Asexual reproduction preserves the genetic information, while sexual reproduction permits variation. Traditional hybridization procedures used in plants and animals breeding very often lead to inclusion and multiplication of undesirable genes along with the desired genes. The techniques of genetic engineering, which include creation of recombinant DNA, use of gene cloning and gene transfer, overcome this limitation and allow us to isolate and introduce only one or a set of desirable genes without introducing genes into the target organism.
What is the purpose of using a gene promoter in recombinant DNA technology?

If in a pond there were 20 lotus plants last year and through reproduction 8 new plants are added, taking the current population to 28, then the birth rate will be -

Analogous structures are a result of:

Arrange the following steps of DNA fingerprinting in a correct sequence.
(A) Hybridisation using labelled VNTR probe and autoradiography
(B) Digestion of DNA by restriction endonuclease and separation of fragments by electrophoresis.
(C) Blotting of separated DNA fragments to synthetic membrane.
(D) Isolation of DNA
Choose the correct answer from the options given below:

Which bacteria fix the atmospheric nitrogen into organic form to be utilized by plants as nutrients?

The first restriction endonuclease to be isolated was :

If \(f(x)=\left\{\begin{array}{l}m x+1, x \geq \pi / 2 \\ \sin x+n, x \leq \pi / 2\end{array}\right.\) is continuous at \(x=\pi / 2\), where \(m \in Z\) (set of integers), then \(\sin 2 n=\)

The IUPAC name of [CoCl₂ (en)₂] Cl complex is :

The nearest integral value of the shaded area shown below is :

Which of the following statements are true with reference to homology or homologous organs?
(A) Homology indicates common ancestry.
(B) Whale and Cheetah share similarities in the pattern of the bones of the forelimbs.
(C) Vertebrate heart is an example of homologous organs.
(D) Thorn of Bougainvillea and tendrils of cucurbita represent homology.
Choose the correct answer from the options given below:

In alcohols, C-O-H bond angle is: