A surprising fact about sickle cell disease is that it
affects only black people
kills the patient
is hereditary
affects blood cells
weakens the patient
Correct answer is C
No explanation has been provided for this answer.
If Benedict's solution gives a positive result in a food test, the food contains
sugar
protein
oil
fat
cellulose
Correct answer is A
No explanation has been provided for this answer.
A person whose blood can be donated to all other people, must have the blood group
O
AB
B
A
none of the above
Correct answer is A
No explanation has been provided for this answer.
Which of the following statement is NOT true of symbiosis?
Symbionts must be living
It is an association of 'give and take'
The association may involve two plants
Association between two similar species
Symbionts derive mutual benefit
Correct answer is D
No explanation has been provided for this answer.
Normally any character shown by an organism is due to the effects of
hormones and chromosomes
chromosomes
mutation
hormones and genes
genes and enviroment
Correct answer is E
No explanation has been provided for this answer.