Introduction to Heredity and Variation
Introduction to Heredity and Variation: Overview
This topic covers concepts, such as Heredity and Evolution, Genetic Variations in Organisms, Somatic Variation, Germinal Variation, Heredity, Inherited Traits, Genetics, Characteristics of Garden Pea Plants, Genotype, Phenotype, Parent Generation, Progeny, F1 Hybrid, F2 Hybrid, Genes, Diploid, Haploid, Dominant Trait, Recessive Trait & Chromosomes etc.
Important Questions on Introduction to Heredity and Variation
Give the respective scientific terms used for studying.
The mechanism by which variations are created and inherited.
In a cross between tallness and dwarfness (TT× tt), is TT (tallness) a gene or an allele?
What will be the blood groups of offsprings produced by the parents having following Male-IAIB & Female-IoIA genotype? Draw a punnet square and write the phenotype and genotype ratio.
Why are traits acquired during its lifetime of an individual not inherited?
In the green gram, the development of two flowers at the axial position is a recessive character, while the development of a single flower at the axial position is a dominant character. If the dominant character is represented by 'SS' and the recessive by 'ss' then answer the following question.
In the green gram plant, only a single flower at the axial position is observed in F1 progeny because it is a _____.
In the green gram, the development of two flowers at the axial position is a recessive character, while the development of a single flower at the axial position is a dominant character. If the dominant character is represented by 'SS' and the recessive by 'ss' then answer the following question.
What will be set of genes present in the F1 generation?
In the green gram, the development of two flowers at the axial position is a recessive character, while the development of a single flower at the axial position is a dominant character. If the dominant character is represented by 'SS' and the recessive by 'ss' then answer the following question.
Phenotype refers to the _____ of an individual.
A piece of DNA contains a total of 1200 nucleotides out of which 200 are adenine bases. How many cytosine bases are present in this segment of DNA?
Genes are made up of
Study by Mendel did not take into consideration which of the following characteristics of garden pea.
Haemophilia is more common in males because it is a
The recessive character in pea plant in the following
Changes in the non – reproductive tissues caused by environmental factors
Chromosomes are made up of
Recessive characters will appear in
Pattern baldness is more common in males than in females due to:
A pair of contrasting characters is called
The biological insights of Mendel and Darwin in the 19th century remain important to this day. Discuss the role of genes and chromosomes in determining individual and shared character features of the members of a species.
A pea plant with round green (RRyy) Pea seed is crossed with another pea plant with wrinkled yellow (rrYY) seeds. What would be the nature of the seed in the first generation ( generation)?
In the method of artificial vegetative propagation, a part of the stem of a plant is pulled and buried in soil, while it is attached and supported by the part. Soon this part strikes root. This part can be separated from the parent plant and grown into a new plant. Example: __y. Identify X and Y.
