Practice question
Question
A typical angiosperm embryo sac at maturity is described as '7-celled and 8-nucleate'. Which of the following cells are haploid?
Explanation
In the embryo sac, the Egg cell, Synergids, and Antipodals are all derived from the haploid megaspore via mitosis, so they are haploid (n). The Central cell contains two polar nuclei (n+n) before fertilization. The Zygote (2n) and Primary Endosperm Nucleus (3n) are post-fertilization structures.
Related blogs
Guides and insights connected to this topic
SARS-CoV-2 Coronavirus: Structure, Genome, Proteins, Replication, Pathogenesis, and Host Interaction
Coronavirus Overview Coronaviruses (CoVs) are enveloped viruses (surrounded by a lipid membrane derived from host cells), belonging to the s...
Coronavirus Structure, Genome, Replication, Symptoms, Pathogenesis, and Prevention
Structure of Coronavirus Coronaviruses (enveloped RNA viruses) fall in the virus family Coronaviridae, order Nidovirales. They are enveloped...
Cucumber Mosaic Virus (CMV): Structure, Genome, Symptoms, Disease Cycle and Management
Cucumber Mosaic Virus (CMV): Introduction and Importance Cucumber Mosaic Virus (CMV) (plant-infecting RNA virus) is one of the most economic...