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When two nuclei fuse together forming one nucleus during cell fusion, it is known as:
synkaryon
eukaryon
heterokaryon
syncytium
synkaryon
A synkaryon is the resulting single nucleus formed after the fusion of two haploid nuclei. This process is a critical step in sexual reproduction (fertilization) or somatic cell hybridization, where the genetic material from two distinct sources combines into one.
A synkaryon is the resulting single nucleus formed after the fusion of two haploid nuclei. This process is a critical step in sexual reproduction (fertilization) or somatic cell hybridization, where the genetic material from two distinct sources combines into one.
Think of two separate bank accounts merging their balances into one consolidated account; the account holder now has access to funds (genetic information) from both original sources.
Syn- (together) + Karyon (nucleus) = One nucleus formed by fusion.
Haploid(n)+Haploid(n)тЖТDiploid(2n)┬а(Synkaryon)
Cell fusion occurs when cell membranes of two different cells merge, creating a transient stage called a heterokaryon. Once the nuclei within this fused cytoplasm migrate and fuse, the genetic material combines, and the structure is formally termed a synkaryon. This restores diploidy in organisms undergoing syngamy.
The process of nuclear fusion is known as karyogamy.
A synkaryon is the hallmark of a successfully completed zygote formation.
Heterokaryons often precede synkaryons during artificial cell fusion experiments like hybridoma technology.
Allows for the study of genetic expression and dominance in somatic cell hybrids.
Essential for reproduction and genetic diversity in eukaryotes.
Incomplete nuclear fusion can lead to aneuploidy or cell death.
Production of monoclonal antibodies via hybridoma technology.
Gene mapping studies in molecular biology.
Option B (Eukaryon) refers to an organism with a true nucleus, not the fusion product itself.
Option C (Heterokaryon) refers to a cell with two genetically distinct nuclei sharing one cytoplasm before nuclear fusion occurs.
Option D (Syncytium) refers to a large multinucleated cell formed by fusion of multiple cells without nuclear fusion (common in muscle tissue).
A is correct тАФ Synkaryon refers specifically to the single nucleus resulting from the union of two parental nuclei.
Distinguish between 'heterokaryon' (two nuclei present) and 'synkaryon' (single fused nucleus) to avoid traps in biology competitive exams.
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