NEET-UG 2020 · Code E1

Which of the following is not an attribute of a population ?

1. ASex ratio
2. BNatality
3. CMortality
4. DSpecies interaction

The process of growth is maximum during :

1. ALog phase
2. BLag phase
3. CSenescence
4. DDormancy

The roots that originate from the base of the stem are :

1. AFibrous roots
2. BPrimary roots
3. CProp roots
4. DLateral roots

In which of the following techniques, the embryos are transferred to assist those females who cannot conceive ?

1. AZIFT and IUT
2. BGIFT and ZIFT
3. CICSI and ZIFT
4. DGIFT and ICSI

Identify the wrong statement with reference to the gene ‘I’ that controls ABO blood groups.

1. AThe gene (I) has three alleles.
2. BA person will have only two of the three alleles.
3. CWhen IA and IB are present together, they express same type of sugar.
4. DAllele ‘i’ does not produce any sugar.

Choose the correct pair from the following :

1. ALigases - Join the two DNA molecules
2. BPolymerases - Break the DNA into fragments
3. CNucleases - Separate the two strands of DNA
4. DExonucleases - Make cuts at specific positions within DNA

Select the correct match.

1. AHaemophilia - Y linked
2. BPhenylketonuria - Autosomal dominant trait
3. CSickle cell anaemia - Autosomal recessive trait, chromosome-11
4. DThalassemia - X linked

The infectious stage of Plasmodium that enters the human body is :

1. ATrophozoites
2. BSporozoites
3. CFemale gametocytes
4. DMale gametocytes