HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Important Questions

Describe the structure of sex chromosomes with the help of labelled diagram.

Write a note on bleeder’s disease and its inheritance with a suitable chart.

Explain codominance in colour coat in cattle with checker board method.

Explain the structure of chromosomes with labelled diagram.

Give an account of one Mendelian and one chromosomal disorder you have studied.

Explain the law of dominance and compare how it differs from incomplete dominance and co-dominance.

Name any two X-Linked recessive disorders.

Give examples of X-linked traits.

Which of the following group shows ZW-ZZ type of sex determination?

Differentiate between X-chromosome and Y-chromosome with reference to –

1. length of non-homologous regions
2. type as per the position of the centromere

Define – Incomplete dominance.

If a red flowered Mirabilis jalapa plant is crossed with a white flowered plant, what will be the phenotypic ratio in F2 generation? Show it by a chart.

Define Aneuploidy.

A pea plant homozygous for yellow round seed is crossed with its recessive parents. Calculate the phenotypic and genotypic ratio with the help of a checkerboard.

What are chromosomal disorders?

Describe Turner's syndrome.

Describe Klinefelter’s syndrome.

Which one of the following is a stop codon?

(a) UAG

(b) UAC

(c) AUG

(d) UCA

What is Anticodon?

How CO₂ makes idlies puffy?