sperm cell

How To Use sperm cell In A Sentence

• The team had already zeroed in on the Jhdm2a enzyme, showing in a 2007 Nature publication that the Jhdm2a gene is highly expressed in mouse testes and plays an important role in spermiogenesis, the final step in the production of a functional sperm cell. Medlogs - Recent stories
• Expression was more obvious in aleurone cells, the endosperm cells lining the maternal seed coat.
• At the second stage, when the sperm cell reaches the vitelline envelope, other recognition molecules allow bindin of the correct species to attach the sperm tightly to the egg.
• Male sperm cells contain virtually no cytoplasm, and are thus lacking in mitochondria.
• It accumulates in the amyloplasta of the endosperm cells during grain filling.
• The seminiferous tubules in the testes, which are the origin of the sperm cells, however, will be reduced in diameter and size.
• When a person is carrying a mutation in an autosomal dominant gene, each egg or sperm cell has a 50 percent chance of containing the nonfunctioning gene copy and a 50 percent chance of containing the normal copy of the gene. Genetics and Alagille Syndrome
• A sperm cell has no individual identity - a human being cannot develop from a sperm cell, and its genetic information can make a contribution to the identity of a person only in the presence of an egg cell. Matthew Yglesias » Too Hot for CBS
• The most common male infertility factors include: azoospermia (no sperm cells are produced) and oligospermia (few sperm cells are produced).
• On one hand, angiosperm cells lack centrosomes as microtubule organizing centres and are missing the contractile ring which serves as a tool for cytokinesis in animal cells.