Concept explainers
Introduction :
Fertilization is just the beginning of a long phase that concludes finally with seed forming. A seed in anthophytes is part of a fruit that grows from the ovary, and also from other organs of the flower.
Answer to Problem 30A
Correct answer :
The correct answer is option (a) diploid
Explanation of Solution
Explanation/justification for the correct answer :
Option (a) diploid. The sporophyte starts as a zygote (2n) which later develops into embryo with one cotyledon in
Explanation for incorrect answer :
Option (b) haploid. Gametes from the two parents are haploid which fuses to form a diploid cell called zygote. So, this is an incorrect answer.
Option(c) monoploid. The number of chromosomes present in a single entire set of chromosomes is considered the monoploid number. So, this is an incorrect answer.
Option (d) triploid. The fusion of two polar nuclei and the nucleus of the sperm which takes place in the center of the ovule, forming a triploid (3n). So, this is an incorrect answer.
Chapter 23 Solutions
Biology Illinois Edition (Glencoe Science)
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