IGCSE Biology Paper-4: Specimen Questions with Answers 223 - 224 of 279

Glide to success with Doorsteptutor material for Bank-PO : get questions, notes, tests, video lectures and more- for all subjects of Bank-PO.

Passage

Flowers from three red-flowered plants, A, B and C, of the same species were self-pollinated.

Question 223 (3 of 5 Based on Passage)

Write in Short

Short Answer▾
The Seeds Were Germinated Separately and Could Grow and Produce Flowers. The Color of These Flowers is Shown in the Table
seeds from plantcolor of flowers grown from the seeds
Aall red
Bsome red and some white
Csome red and some white

The seeds were germinated separately and could grow and produce flowers. The color of these flowers is shown in the table.

Seeds were collected from plants A, B and C.

Suggest how you could make certain that self-pollination took place in the flowers of plants A, B and C.

Explanation

Cover flower with plastic bag or butter paper to prevent contamination from other pollen.

Question 224 (4 of 5 Based on Passage)

Write in Short

Short Answer▾
The Seeds Were Germinated Separately and Could Grow and Produce Flowers. The Color of These Flowers is Shown in the Table
seeds from plantcolor of flowers grown from the seeds
Aall red
Bsome red and some white
Csome red and some white

The seeds were germinated separately and could grow and produce flowers. The color of these flowers is shown in the table.

Seeds were collected from plants A, B and C.

State which plant, A, B, or C, produced seeds that were homozygous for flower color.

Explanation

RR genotype will show red flower.

rr genotype will show white flower.

Developed by: