MEDIUM
Diploma
IMPORTANT
Earn 100
Which diagram shows a peptide bond between two amino acids?
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Important Questions on Practice Exam Papers
HARD
Diploma
IMPORTANT
Which statement refers to DNA and RNA?
MEDIUM
Diploma
IMPORTANT
Which statement is related to DNA replication?
HARD
Diploma
IMPORTANT
Which graph best represents the effect of increasing the substrate concentration on enzyme activity?
MEDIUM
Diploma
IMPORTANT
Which molecule is the source of the oxygen produced in photosynthesis?
HARD
Diploma
IMPORTANT
What is the relationship between Mendels law of segregation and meiosis?
MEDIUM
Diploma
IMPORTANT
A man has haemophilia, a condition caused by a recessive allele carried on the X chromosome. What is the possibility of having a haemophiliac child if his wife is homozygous normal for the gene?
EASY
Diploma
IMPORTANT
In goldfish (Ceramics auratus) there is variation in colour pattern. The homozygous dominant (TT) all are common orange goldfish and the homozygous recessive (tt) are transparent. When crossed, they produce mottled fish (Tt). What is this type of inheritance called?
HARD
Diploma
IMPORTANT
In mice (Mus musculus) grey colour is due to a dominant allele (G) and the allele for albino colour (g) is recessive. Grey mice were crossed with albino mice. A total of 6 of the offspring were grey and 4 albinos. The null hypothesis is that the alleles segregate independently (are unlinked) therefore the grey parent was heterozygous. The chi-squared value is 0.4. The table below shows the probability values:
Which of the statements is correct about the null hypothesis?
