Identify the role of deoxyribonucleoside triphosphates in DNA replication?

When Tt x Tt are crossed, how many percent of the offsprings show a recessive phenotype?

Arrange the following events of embryo development occuring after fertilisation in the correct sequence.
A. Attachment of blastocysts with uterine endometrium
B. Formation of morula
C. Formation of blastocyst
D. Cleavage in the zygote
Choose the correct answer from the options given below:

How many haploid cells will be formed after first meiotic division of one primary spermatocyte ?

Arrange the following processes of recombinant DNA technology in a correct sequence:
(A). Amplification of gene by using PCR
(B). Isolation of DNA and cutting of DNA at specific location
(C). Obtaining the desired foreign gene product
(D). Insertion of recombinant DNA into the host
Choose the correct answer from the options given below:

Arrange the given taxa of invertebrates in terms of their increasing numbers.
(A) Other animal groups
(B) Molluscs
(C) Insects
(D) Crustaceans
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Which of the following statements are correct regarding decomposition?
A. Decomposition is largely oxygen-requiring process
B. The rate of decomposition is controlled by chemical composition of detritus and climatic factors
C. Dry and cold environment favour the decomposition.
D. If detritus is rich in lignin and chitin, the decomposition rate is faster
Choose the correct answer from the options given below:

Given relation \(R =\{(x, y): y=x+5, x<4, x, y \in N\}\). Where N is a set of natural numbers then :

The function \(f(x)=x^3+3 x^2+4 x+4, x \in R\) (set of real numbers):

Lichens are an example of -

Which of the following are the examples of aldol condensation?
A. \(2 CH _3 CHO \xrightarrow{\text { dil. } NaOH } CH _3 CHOHCH _2 CHO\)
B. \(2 CH _3 COCH _3 \xrightarrow{ Ba ( OH )_2} CH _3 COCH _2 C \left( CH _3\right)_2 OH\)
C. \(2 HCHO \xrightarrow{\text { dil. } NaOH } CH _3 OH\)
D. \(C _6 H _5 CHO \xrightarrow{\text { dil. } NaOH } C _6 H _5 CH _2 OH + HCOOH\)
Choose the correct answer from the options given below :

In \(\triangle A B C\), which of the following is not true is:
(A) \(\overrightarrow{A B}+\overrightarrow{B C}+\overrightarrow{C A}=\overrightarrow{0}\)
(B) \(\overrightarrow{A B}+\overrightarrow{B C}-\overrightarrow{A C}=\overrightarrow{0}\)
(C) \(\overrightarrow{A B}+\overrightarrow{B C}-\overrightarrow{C A}=\overrightarrow{0}\)
(D) \(\overrightarrow{A B}-\overrightarrow{C B}+\overrightarrow{C A}=\overrightarrow{0}\)
(E) \(\overrightarrow{B A}-\overrightarrow{B C}-\overrightarrow{C A} \neq \overrightarrow{0}\)

Answer the question on the basis of passage given below :
One of the notable features of the transition element is the great variety of oxidation states it may show in its compounds. The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example exhibits all the oxidation states from +2 to +7. The lesser number of oxidation states at the extreme ends is either due to losing or sharing of few electrons (Sc, Ti) or too many d electrons of higher valence. Early in the first series scandium (II) is virtually unknown and titanium (IV) which is more stable than Ti (III) or Ti (II). On the other end, the only oxidation state of zinc is \(+ 2\).
Oxidation state of scandium is