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During which phase do the daughter cells get one chromosome of each homologous pair?

Choose the correct option with respect to the assertion and reason given.

Assertion [A]: Sperms formed are stored in the seminal vesicle.

Reason [R]: Ejaculation takes place after the addition of secretions from accessory glands.

Given below is the diagram of a bacteriophage. In which one of the options all the four parts a, b, c, and d are correct?

The middle layer of the heart wall is

Penicillium falls under the kingdom:

In which kingdom would you classify the archaea and nitrogen-fixing organism, if the five-kingdom system of classification is used:

What is the normal ${pCO}_2$ of the capillary blood?

Each testis is covered by a fibrous connective tissue covering called

Element present in middle lamella is

One strand of DNA has the following sequence of nucleotide 3’ATTCGCTAT5’ so the other strand of DNA has:

Arrange the events of embryo formation

sequentially and choose the correct option:

I. Blastocyst II. Mature embryo

III. Morula IV. Zygotic cleavage

V. Blastomeres

Maximum starch is manufactured by

Watson and Crick constructed the double helical model of DNA based on images developed by Rosalind Franklin through _______________ technique.

Which of the following is responsible for the extinction of animals?

Match the columns and find out the correct combination

$\begin{array}{cccc}& \text{I}& & \text{II}\\ \text{(a)}& \text{Bulliform cells}& \text{(i)}& \text{Lenticels}\\ \text{(b)}& \text{Guard cells}& \text{(ii)}& \text{Isobilateral leaf}\\ \text{(c)}& \text{Epithem}& \text{(iii)}& \text{Stomata}\\ \text{(d)}& \text{Complementary cells}& \text{(iv)}& \text{Hydathodes}\\ & & \text{(v)}& \text{Phellem}\end{array}$

The presence of gill slits in the embryos of all vertebrates supports the theory of

Which one of the following is NOT true about antibiotics?

Consider the statements given below. Select the correct option :

Statement A: The chance of survival of young ones is greatest in viviparous organisms

Statement B: The fertilized eggs are covered by hard calcareous shell in viviparous organisms.

How many pairs of ribs are found in humans?

Tomatoes we see today on the shelves of grocery stores are products of

Match the following elements of Urine analysis

Who among the following discovered $C_4$ cycle?

Homologous chromosomes are:

Choose the correct synapse label for the explanation given in the column:

In the thylakoid membranes, what is the main role of the antenna pigment molecules?

A cross between yellow flowered and round fruit (both dominant) bearing plant and white flowered elongated fruit (both recessive) bearing plant yielded 20 plants in progeny which formed 960 plants in generation. The number of plants with yellow flowers and round fruits in generations would be

Which of the following are controlled by pleiotropic genes?

The sporozoites that cause infection when a female Anopheles mosquito bites a human being are formed in:

Vertical growth in a plant body is mainly due to

In human beings, the middle ear ossicles, from inside to outside, are in the sequence of:

Identify the wrong match:

With regard to the assertion and reason, choose the correct option.

Assertion [A]: An ability of an organism to adjust to its environment is called adaptation.

Reason [R]: Acclimatisation is when an organism adjusts to a gradual change in its environment.

In Hardy-Weinberg equation, the frequency of heterozygous individuals is represented by

The proper sequence of stages in glycolysis is

The three parts of the sternum are the ______

Asexual reproduction in fungi occurs by

Match the following columns of Taxa with their suffix and choose the correct sequence option.

$\begin{array}{cc}\text{Column I (Taxa)}& \text{Column II (suffix)}\\ \text{i). Order}& \text{a. Hominidae}\\ \text{ii). Family}& \text{b. Homo}\\ \text{iii). Genus}& \text{c. Sapiens}\\ \text{iv). Species}& \text{d. Primates}\end{array}$

Rasping organ in snail is

Which one of the following is not a gaseous biogeochemical cycle in ecosystem?

Given below are certain statements regarding the female reproductive system. With respect to these statements, choose the correct option.

Statement 1: Uterus is thick walled with a rich vasculature.

Statement 2: Cervix is divided into supravaginal and vaginal regions.

Statement 3: The vagina is wider than the uterus.

Statement 4: The cervix is highly elastic and receives the penis during coitus.

A group of similar individuals living in a given area that have the potential to interbreed in nature is called

Predation is an association between two species where

The major source(s) of emissions of $S{O}_x$ is/are

If the cell cycle is restricted in $G_1$ phase of cell, the condition is known as -

Match the biological molecules listed under column I with their biological functions listed under column II. Choose the answer which gives the correct combinations from the two columns.

$\begin{array}{cc}ColumnI& ColumnII\\ \left(BiologicalMolecule\right)& \left(Function\right)\\ A.Glycogen& 1.Hormone\\ B.Globulin& 2.Biocatalyst\\ C.Steroid& 3.Antibody\\ D.Thrombin& 4.Storageproduct\end{array}$

Exclusively marine animals which are triploblastic, deuterostomes and exhibit radial symmetry in the adult stage and bilateral symmetry in the larval stages are placed under

The technique used in biotechnology is