Animal Model Organisms

1. The __________ was historically used as a simple pregnancy test because human chorionic gonadotropin stimulates egg production.​ ​ (a)  

1. The __________ was the first animal to have its entire genome fully sequenced.​ ​ (a)  

Approximately __________ % of zebrafish genes are identical to human genes.​ (a)  

The mouse shares about __________ % of its genes with humans, and approximately __________ % of genes associated with human disease have a matching counterpart in mice.​ (a)   ​ (b)  

__________ embryos develop outside the mother, making them easy to observe and manipulate for studies of limb development and molecular patterning.​ (a)  

The classic experiment proving neural induction was performed using __________ embryos. The dorsal lip of the blastopore (organizer) was transplanted to induce a secondary neural axis.​ (a)  

__________ has a fixed and invariant cell lineage, allowing scientists to trace every cell division from zygote to adult.​ (a)  

The discovery of programmed cell death (apoptosis) and the ced genes was made using __________.​ (a)  

Because __________ embryos are transparent and develop externally, they are ideal for observing vertebrate gastrulation and organogenesis in real time.​ (a)  

In __________, early development is divided into two major genetic subprograms: dorsoventral and anteroposterior patterning.​ (a)