Suspension cultures show both numerical and structural chromosomal changes such as;

TLS Online TPP Program

#Question id: 769

#SCPH06 I Botany

MicroRNAs are developed from:

TLS Online TPP Program

#Question id: 5424

#SCPH28 | Zoology

Imagine that height in corn plants is determined by three loci. The baseline height is 100 cm. Every + allele adds 10cm to the plant’s potential height, every – allele subtracts 10 cm from the plant’s potential height. The shortest possible plant and the tallest possible plant are mated to form an F1, what is the height of the F1?

TLS Online TPP Program

#Question id: 5067

#SCPH28 | Zoology

The yolky eggs of birds undergo:

TLS Online TPP Program

#Question id: 15869

#SCPH05 I Biotechnology

In a modest laboratory, aseptic handling, maintenance and observation of cultures, these activities can be done in the culture room.  Some facilities are required for the culture room, except?

TLS Online TPP Program

#Question id: 15147

#SCPH12 I Genetics

You have isolated a set of five yeast mutants that form dark red colonies instead of the usual white colonies of wild-type yeast. You cross each of the mutants to a wild-type haploid strain and obtain the results shown below;

you cross each haploid mutant strain to a different haploid mutant of the opposite mating type. From the results shown below deduce as much as you can about which mutations lie in the same gene. Clearly state any remaining ambiguities and suggest some general ways that the ambiguities might be resolved

a) That mutants 1 and 3 form one complementation group and are mutations in the same gene (gene A) 

b) That mutations 2 and 5 form a second complementation group and are mutations in a second gene (gene B).

c) That mutations 3 and 5 form a second complementation group and are mutations in a second gene (gene B).

d) The first ambiguity is whether mutant 4 has a mutation in gene A or B, or whether it represents a unique gene.

Which of the following is the correct prediction about mutants?