A plant with green pods and smooth seeds with genotype Ggss will give rise to the following gametes : ________
- AGg and Ss
- BGs and ss
- ✓Gs and gs
- DGg and gs
Answer: C.
View full solution →Question types
Genetics - Some Basic Fundamentals question types
135 questions across 9 question groups — pick any mix to generate a Biology paper with step-by-step answer keys.
135
Questions
9
Question groups
5
Question types
01
MCQ
38 Q→02Fill in the blanks.
10 Q→03[1 Mark Question Answer]
41 Q→04[2 Mark Question Answer]
5 Q→05Match the following.
2 Q→06[3 marks Question Answer]
10 Q→07[5 Mark Question Answer]
2 Q→08TRUE / FALSE
12 Q→09Do as Directed.
15 Q→Sample Questions
Genetics - Some Basic Fundamentals questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
The $9:3:3:1$ dihybrid ratio is due to $.......$
- Asegregation
- Bcrossing over
- ✓independent assortment
- Dhomologous pairing
Answer: C.
View full solution →If a pure tall plant is crossed with a pure dwarf plant, then offspring will be $.......$
- ✓all tall
- Ball dwarf
- C$3$ tall $1$ dwarf
- D$50\%$ tall $50\%$ dwarf
Answer: A.
View full solution →Which one of the following is the phenotypic monohybrid ratio in $F_2$ generation?
- ✓$(3 : 1)$
- B$(1 : 2 : 1)$
- C$(2 : 2)$
- D$(1 : 3)$
Answer: A.
View full solution →A male gorilla has 48 chromosomes in each of its body cells. How many chromosomes will each of the sperms have?
- ✓24
- B48
- C17
- D16
Answer: A.
View full solution →In a monohybrid cross, one trait is followed through the breeding process. For example, if we cross a pea plant with dominant purple flowers ________ (i) ________ with one having recessive white flowers ________ (ii) ________ , the first generation $\left( F _1\right)$ will exhibit the ________ (iii) ________ trait. However, when these F1 plants are self-pollinated, the next generation ( $F _2$ ) displays a ________ (iv) ________ ratio of purple to white flowers, demonstrating the principle of ________ (v) ________ .
View full solution →In humans, sex is completely determined by the ________ (i)_______ not depend on the ________ (ii) ________ . Typically, a female has two ________ (iii) ________ chromosomes, while a male has one ________ (iv) ________ and one ________ (v) ________ chromosome.
After ________ the diploid number of chromosomes are restored.
________ chromosomes do not take part in sex determination.
The physical expression of genes is called ________ .
Which one of the following genotypes is homozygous dominant and which one homozygous recessive in regards to tongue rolling :
Name any two genetic in humans.
A family consists of two parents and their five children and the pedigree chart shown below shows the inheritance of the trait colour blindness in them.
Name one other trait in humans which follows a similar pattern of inheritance.
Name one other trait in humans which follows a similar pattern of inheritance.
A family consists of two parents and their five children and the pedigree chart shown below shows the inheritance of the trait colour blindness in them.
On which chromosome is the gene of this trait located?
On which chromosome is the gene of this trait located?
A family consists of two parents and their five children and the pedigree chart shown below shows the inheritance of the trait colour blindness in them.
What does the child 1 indicate about this trait?
What does the child 1 indicate about this trait?
Two pairs (A & B) of rabbits were crossed as given below:
(a) Can you tell which coat colour (black or white) is dominant? ________ .
(b) Is the coat colour sex-linked? ________ .
(a) Can you tell which coat colour (black or white) is dominant? ________ .
(b) Is the coat colour sex-linked? ________ .
In a certain species of animals, black fur (B) is dominant over brown fur (b) Show the possible ratio of genotypes and phenotypes of the offspring of the pure breeding different coloured parents.
Among lion, tiger and domestic cat, al the three have the same number of 38 chromosomes, yet they have different appearances. How do you account for such differences?
Differentiate between :
character and trait.
character and trait.
Explain the following term : Pedigree chart
| Column A | Column B |
| (i) Genetics | (A) Chromosomes similar in size and shape. |
| (ii) Autosomes | (B) The alternative forms of genes. |
| (iii) Recessive genes | (C) Study of laws of inheritance of characters. |
| (iv) Allele | (D) A gene that can express only when in a similar pair. |
| (E) Chromosomes other than the pair of sex chromosomes. |
Match the terms in column I with their explanations in column II.
| Column I (Term) | Column I (Explanation) | ||
| a | genetics | 1 | Chromosomes similar in size and shapes |
| b | Autosomes | 2 | The alternative forms of a gene |
| c | Recessive gene | 3 | Study of laws of inheritance of characters |
| d | Allele | 4 | A gene that can express only when in a similar pair |
| e | Homologous chromosomes | 5 | Chromosomes other than the pair of sex chromosomes. |
Make a punnett square for finding out the proportion of different genotypes in the progeny of a genetic cross between.
red flower variety of pea (RR) with white flower variety of pea (rr)
red flower variety of pea (RR) with white flower variety of pea (rr)
Make a punnett square for finding out the proportion of different genotypes in the progeny of a genetic cross between.
A pure tall (TT) pea plant with a pure dwarf (tt) pea plant.
A pure tall (TT) pea plant with a pure dwarf (tt) pea plant.
In a certain species of animals, black fur (B) is dominant over brown fur (b) Predict the genotype and phenotype of the offspring when both parents are ‘Bb’ or have heterozygous
black fur .
black fur .
Explain why generally only the male child suffers from colour blindness and not the female?
Differentiate between:
genotype and phenotype
genotype and phenotype
Does the sex of the child depend on the father or it is just a matter of chance? Discuss
A colour blind male cannot distinguish any colour.
Haemophilia exhibits X -linked inheritance.
Colour blindness is a Y-linked disorder.
Females are more affected by sex-linked genetic disorders.
Male acts as carrier for colour blindness.
State the function :
Heterosomes
Heterosomes
State the function :
Autosomes
Autosomes
State the function :
Genes
Genes
State the function :
Chromosomes
Chromosomes
State the function :
DNA
DNA
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