Which of the following is true about the operator and the promoter in gene regulation?

What is the recombination frequency of the cross from the question above?

What would be the consequences of a two nucleotide-deletion mutation in the middle of the first exon of a protein-coding gene?

2.2 Verwys na die addendum en gebruik Figuur 2.2 wat Huiswaterrivier aantoon om die volgende vrae te voltooi. 2.2.1 a. Identifiseer die dreineringspatroon wat by A gevind word.  (2)

1.1.4 Teken ‘n dwarsaansig van die weerstelsel in figuur 1.1 vanaf C na D en benoem die volgende: a. Temperature (warm / koud) b. Hoof-wolktipe c. Tipe neerslag (5)

Protection of the membrane of eardrum from outside dangers is a function of                    .

A 20 week ultrasound revealed brain tissue floating in amniotic fluid.  The following image was taken.  What is the most likely diagnosis? 

What does the yolk sac produce?

Which location are most ectopia cordis’s found?

Apoptosis is the death of cells that occurs as a normal and controlled part of an organism’s growth or development.