| 单词 | zona pellucida |
| 例句 | In mammals, a layer called the zona pellucida protects the egg. Concepts of Biology 2013-04-25T00:00:00Z In mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. Biology for AP Courses 2022-06-09T00:00:00Z These enzymes clear a path through the zona pellucida that allows sperm to reach the oocyte. Anatomy and Physiology 2013-06-19T00:00:00Z White arrows point to the presumptive inner cell mass and a black arrow to a representative zona pellucida. Genome editing reveals a role for OCT4 in human embryogenesis : Nature : Nature Research 2017-09-19T04:00:00Z These peptides make up what is called the "zona pellucida" — a sort of extracellular eggshell that surrounds the egg in a transparent layer. Decoy eggs used to provide birth control for mice 2016-04-27T04:00:00Z When a sperm binds to the zona pellucida, a series of events, called the acrosomal reactions, take place. Concepts of Biology 2013-04-25T00:00:00Z When a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. Biology for AP Courses 2022-06-09T00:00:00Z Then, upon contact with the zona pellucida, the sperm bind to receptors in the zona pellucida. Anatomy and Physiology 2013-06-19T00:00:00Z White arrows point to the presumptive inner cell mass and a black arrow to a representative zona pellucida. Genome editing reveals a role for OCT4 in human embryogenesis : Nature : Nature Research 2017-09-19T04:00:00Z His foot worked a pedal that lasered a hole in the coat of one of the eggs, the pretty zona pellucida. The Brave New World of Three-Parent I.V.F. 2014-06-27T04:00:00Z As the team reports online today in Science, the sugars from human zona pellucida predominantly carry one kind of carbohydrate branch, a structure known as sialyl-Lewisx. The Sweet Meeting of Sperm and Egg 2011-08-18T19:00:00Z The thick, outer, structureless envelope that encloses it is the original ovolemma or zona pellucida, modified, and clothed with a layer of albumin that has been deposited on the outside. The Evolution of Man — Volume 1 The mucopolysaccharides then coat the nascent zygote in an impenetrable barrier that, together with hardened zona pellucida, is called a fertilization membrane. Anatomy and Physiology 2013-06-19T00:00:00Z As the blastocyst forms, the trophoblast excretes enzymes that begin to degrade the zona pellucida. Anatomy and Physiology 2013-06-19T00:00:00Z In a process called “hatching,” the conceptus breaks free of the zona pellucida in preparation for implantation. Anatomy and Physiology 2013-06-19T00:00:00Z The researchers then used mass spectrometry to identify the carbohydrates in zona pellucida material from the eggs. The Sweet Meeting of Sperm and Egg 2011-08-18T19:00:00Z The zona pellucida in humans contains four kinds of proteins. The Sweet Meeting of Sperm and Egg 2011-08-18T19:00:00Z |
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