Biology questions
20584 published questions with worked solutions.
- TtRr represents (heterozygous tall, heterozygous pink). If this plant is self-crossed then (T-dominant, t-recession, R-dominant,...
- ABO blood grouping in human beings is an example for 1. Dominance 2. Incomplete dominance 3. Codominance 4. Multiple alleles
- Choose the correct option for the chromosomal disorders
- In haemophilia, a single protein that is a part of cascade of protein involved in __A__ of __B__ is affected. Single cut will...
- 1. Haemophilia 2. Cystic fibrosis 3. Sickle-cell anaemia 4. Color blindness 5. Cancer 6. Plague 7. Phenylketonuria 8. Thalassemia...
- The possibility of a female becoming a haemophilia is __A__ rare because mother of such a female has to be at least __B__ and the...
- __A__ is sex-linked recessive disease, which shows its transmission from __B__ female to __C__ progeny. Choose the correct option...
- One child is haemophilic (sex-linked trait), while its fraternal twins brother is normal, which one of the following information...
- Which of the following condition correctly describes the manner of determining the sex in the given example?
- 1. Short statured with small round head. 2. Furrowed tongue and partially opened mouth. 3. Palm is broad with characteristic palm...
- Choose the incorrect option for Klinerfelter's syndrome
- With respect to phenylketonuria, identify which statement is not correct?
- Genes A, B and C are linked. Genes A and B are more close than A and C. Find out the incorrect option from the given statements.
- Match the following columns. Column I: A - Non-parental gene exchange; B - Non-sister chromatids; C - Sex chromosome; D -...
- Match the following columns. Column I: A - Autosomal linked recessive trait; B - Sex-linked recessive disease; C - Metabolic...
- Which of the following is true about linkage?
- Examples of dissimilar sex chromosome are given below. 1. XX - XY I 2. XX - XO II I and II in the above statement can be
- The similar and dissimilar sex chromosomes of females and males are described as
- When a cluster of genes show linkage behavior they
- Which of the following diseases results from the genetic inability to synthesis a single enzyme?