Related Experiment Video

Updated: Aug 15, 2026

Human Blastocyst Biopsy and Vitrification
10:59

Human Blastocyst Biopsy and Vitrification

Published on: July 26, 2019

Birth weight and sex ratio after transfer at the blastocyst stage in humans

Y J Ménézo1, J Chouteau, J Torelló

  • 1Institut Rhonalpin, Fondation Marcel Mérieux, Bron, France.

Fertility and Sterility
|August 10, 1999
PubMed
Abstract

More Related Videos

Protocol for Human Blastoids Modeling Blastocyst Development and Implantation12:09

Protocol for Human Blastoids Modeling Blastocyst Development and Implantation

Published on: August 10, 2022

Monitoring Blood Glucose in Mouse Offspring After Intracytoplasmic Sperm Injection06:11

Monitoring Blood Glucose in Mouse Offspring After Intracytoplasmic Sperm Injection

Published on: May 17, 2024

Related Concept Videos

Fertilization01:38

Fertilization

During fertilization, an egg and sperm cell fuse to create a new diploid structure. In humans, the process occurs once the egg has been released from the ovary, and travels into the fallopian tubes. The process requires several key steps: 1) sperm present in the genital tract must locate the egg; 2) once there, sperm need to release enzymes to help them burrow through the protective zona pellucida of the egg; and 3) the membranes of a single sperm cell and egg must fuse, with the sperm...
Cleavage and Blastulation01:33

Cleavage and Blastulation

After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.
The Ratio of X Chromosome to Autosomes02:45

The Ratio of X Chromosome to Autosomes

In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...