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The QRS complex in a standard ECG represents
During which phase(s) of the cell cycle, does the amount of DNA in a cell remain at 4C level if the initial amount is denoted as 2C?
Match List - I with List - II List - I (Type of flower) (A) Zygomorphic (B) Hypogynous (C) Perigynous (D) Epigynous List - II (Example) (I) Mustard (II) Plum (III) Cassia (IV) Cucumber
Placentation in tomato and lemon is:
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
The best example of pleiotropy is:
Which of the following pairs is of unicellular algae?
Aestivation of petals in the flower of cotton is correctly shown in:
The flowers are Zygomorphic in: (a) Mustard (b) Gulmohur (c) Cassia (d) Datura (e) Chilli Choose the correct answer from the options given below:
Match List-I with List-II: List-I (Sub Phase of Prophase I) A. Diakinesis B. Pachytene C. Zygotene D. Leptotene List-II (Specific characters) I. Synaptonemal complex formation II. Completion of terminalisation of chiasmata III. Chromosomes look like thin threads IV. Appearance of recombination nodules
What is the expected percentage of F2 progeny with yellow and inflated pod in dihybrid cross experiment involving pea plants with green coloured, inflated pod and yellow coloured constricted pod?
Given below is a schematic break-up of the phases/stages of cell cycle. Which one of the following is the correct indication of the stage/phase in the cell cycle?
Identify the correct set of statements: (a) The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea. (b) Axillary buds form slender and spirally coiled tendrils in Cucumber and Pumpkin. (c) Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves. (d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration. (e) Subaerially growing stems in grasses and strawberry help in vegetative propagation.
Study the pedigree chart given below: What does it show?
To ensure that only the desired pollens fall on the stigma in artificial hybridization process: a: the female flower buds of plant producing unisexual flower need not be bagged. b: there is no need to emasculate unisexual flowers of selected female parent. c: emasculated flowers are to be bagged immediately after cross pollination. d: emasculated flowers are to be bagged after removal of anthers. e: bisexual flowers, showing protogyny are never selected for cross. Choose the correct answer from the options given below:
MTP was legalised in India in:
Select the wrong statement:
Which one of the following organisms bears hollow and pneumatic long bones?
Identify the correct statements related to the androecium in the flower: (a) Sterile stamens are called staminodes. (b) When stamens are attached to petals, they are called epipetalous. (c) Monoadelphous stamens are found in China rose. (d) Polyadelphous stamens are found in Pea. (e) Variation in the length of filaments is seen in Salvia and Mustard.
If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?