Test cross in plants or in Drosophila involves crossing - Vidyadip

MCQ

Test cross in plants or in Drosophila involves crossing

A
between two genotypes with recessive trait
B
between two $F_1$ hybrids
✓
the $F_1$ hybrid with a double recessive genotype
D
between two genotypes with dominant trait.

✓

Answer

Correct option: C.

the $F_1$ hybrid with a double recessive genotype

c
(c) : Test cross is performed to determine the genotype of $F_2$ plant. In a typical test cross an organism showing dominant phenotype and whose genotype is to bedetermined is crossed with one that is homozygous recessive for the allele being investigated, instead of selfcrossing. The progenies of such a cross can easily be analysed to predict the genotype of the test organism. Given ahead is an illustration of test cross:

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?

Chemical which are released at the synaptic junction are called

Joints are lubricated by

$I.$ Hypothyroidism causes irregularity of menstrual cycle $II.$ Hyperthyroidism adversely affects the body physiology $III.$ Hypothyroidism cause cretinism $IV.$ Hypothyroidism causes goitre

Which of the above statements are correct?

Choose the correct option

Delete the odd one:

Assertion : Secreting hypotonic urine is effective in reducing urinary loss of water.
Reason : Hypotonic urine is more concentrated and higher in osmotic pressure than the blood

Which of the following is/are included in Cnidarians?

Hormones which interact with intracellular receptors are

$I. Steroid hormones$

$II. ACTH$

$IIII. Iodothyronines$

$IV. MSH$

Choose the option with correct combination

The word 'crossing over' is given by

Which one of the following produces AIDS