STD 12 - 5. molecular basis of inheritance — NEET STD 11 Science — Question

The cells without nuclei are present in

The bacteria which oxidize various inorganic substances and use the released energy for the synthesis of food are called _______.

End product of glycolysis in anaerobic respiration occurs in human is

Which of the following factors cannot be regarded as belonging to a non-living environment

Choose correct statement for cytokine and mark correct option :
(i) It is a simple gaseous PGR.
(ii) It synthesised in large amounts by tissues undergoing senescence and ripening fruits.
(iii) Influences of it on plants include horizontal growth of seedlings, swelling of the axis and apical hook formation in dicot seedlings.
(iv) It promotes senescence and abscission of plant organs especially of leaves and flowers.
(v) It synthesised in regions where rapid cell division occurs, for example, root apices, developing shoot buds, young fruits, etc.
(vi) It helps to produce new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation.
(vii) It help overcome the apical dominance.
(viii) They promote nutrient mobilisation which helps in the delay of leaf senescence.

Inner most layer of cortex which also known as starch sheath.

During photosynthesis

Genes that are involved in turning on or off the transcription of a set of structural genes are called

Identify the wrong statements for seed from given
(i) The embryo is made up of an embryonal axis and one cotyledons in gram and two cotyledons in pea.
(ii) The ovules after fertilisation, develop into seeds.
(iii) The seed coat has two layers, the outer testa and the inner tegmen.
(iv) The hilum is a scar on the seed coat through which the developing seeds were attached to the fruit.
(v) Seeds of castor is non-endospermic while seed of bean, gram and pea is endospermic