GE 02-52 Gonosomal inheritance

Gonosomal inheritance is located
1. in the heterologous part of the chromosome
2. in the homologous part of the chromosome
3. in all the chromosome
Sexual chromosomes are
1. X and Y
2. X orY
3. A, X and Y
Chromosome Y is much smaller than X
1. statement is true
2. statement is false
Big heterologous part of chromosome X forms a special binding group
1. inheritance fully connected with the sex
2. inheritance not fully connected with the sex
3. cross inheritance
Inheritance not fully connected with the sex
1. genes on a small homologous section of both chromosomes are subjects to synapsis
2. crossing over can proceed here
Which genes determine holandric features?
1. genes lying in heterologous section of chromosome Y
2. genes lying in hmologous section of chromosome Y
3. genes lying in heterologous section of chromosome X
Genes carried on chromosome Y are transferred only on males (heterogametic sex)
1. they show direct inheritance
2. so called Y - chromosomal inheritance
3. so called X - chromosomal inheritance
Genes lying in heterologous section of chromosome X prove
1. so called X - chromosomal inheritance
2. so called Y - chromosomal inheritance
3. so called direct inheritance
Homologous sections determine features
1. not completely connected with sex, i.e. Mendel´s lawns in force
2. completely connected with sex, i.e. Mendel´s lawns in force
3. not completely connected with sex, i.e. Mendel´s lawns not in force
How is called key gene of chromosome Y?
1. SRY
2. SBY
3. SSY