Biology Notes for Class 10 Chapter 15

Copies of chromatids of chromosomes are made through the process called______

Which is favorable variation in moths after industrial revolution?

The offspring of P1 generation are ___________

True breeding means___________

________ gave the first hint at evolution?

How many hydrogen bonds formed between adenine and thymine?

In which type of variations, the phenotypes show a complete range of measurements from one extreme to the other is ______________

Feet size in Man is an example of ____________

The position of gene on chromosome is known as______________

Which of the following is not an inheritable trait?

The alternate forms of a gene are called as_____________

It is situation where two different alleles of a gene pair express themselves completely, instead of showing a dominant-recessive relationship is called__________

Specific proteins have specific number and sequence of ________________

An organism has two different alleles for a single trait. Its genotype is said to be_______

A cross in which two contrasting traits studied at a time is called__________

In which part of cell, transcription takes place?

In England, moths had________

DNA is the genetic material, it contains the instructions to direct all the functions of_____

Who proposed the mechanism of organic evolution in 1838?

DNA wraps around histone protein and forms rounded structures called as______

Physical appearance or color of an organism is called__________

Which of the following statements regarding genes is False?

Ribosome reads the sequence of mNRA nucleotides and joins specific amino acids to form proteins. This step is known as____________

Which variations show distinct phenotypes and phenotypes of such variations cannot be measured?

Charles Darwin proposed that organisms produce many more offspring than can possible survive on the limited amount of resources available to them. According to Darwin, the offspring that are most likely to survive are those that_________

Intentional breeding between individuals for certain traits, or combination of traits is called as_________

Pisum sativum is scientific name of ____________

Inside of double helix consists of __________

Specific sequence of DNA nucleotide is copied in the form of mRNA in a process_________

Nucleosome is composed of_________

In which part of cell, transcription takes place?

What condenses into a chromosome?

How many hydrogen bond are formed between cytosine and guanine?

Zygote receive only _______ alleles from each parent

A purple-flowered pea plant has the genotype PP. which of the following statements about this plant is False?

Example of discontinuous variation is __________

The Specific combination of genes in an individual is known as_________

A dominant allele only suppresses the expression of recessive allele; it does not affect its___________

1. Sequence of amino acids in a protein is controlled by sequence of ________ in DNA.

Pink flowered Four O Clock plant is an example of _____________

It is change in characteristics of a population or species of organisms over the course of generations_____________

What make the backbone of DNA molecule?

Dominant alleles are represented by ________ Letter and recessive alleles by _________ letter.

Adenine always pair with__________

What is the Diploid (2n) number of humans?

Outside backbone of double helix is made up of _________

What will be the color of flowers produced as a result of cross between red and white flowered 4’O clock plants?

Transmission of characteristics from parents to offsprings is called as______________

How many genetically different kinds of gametes an individual with genotype AAbb can produce?

It is the process by which the better genetic variations become more common in successive generations of population______________

In 1953, __________ proposed the structure of DNA.

It is a condition in which normal body pigments are absent__________

In the cross-pollination between a true-breeding yellow pod plant, where green pod color is dominant, the resulting offspring’s (F1 generation) will be______

Who developed fundamental principles of genetics?

Which of the following genes will be termed as Homozygous Recessive?

Mendel’s primary contribution to our understanding of inheritance was__________

Branch of biology that deals with the study of inheritance is called as____________

Which component of cell is involved in translation?

A DNA molecule consists of ____________ polynucleotide strands.

Working of DNA is also called___________

Among following, which is the source of variations?

Variations selected for their transmission to next generation are_______________

How many pairs of homologous chromosomes are there in human body cell?

mRNA is synthesized by__________

Two chromosomes of a pair are known as ___________

An organism’s expressed physical trait, such as seed color or pod shape, is called its______

The trait of round seeds was dominant over____________

It is a situation where in heterozygous genotypes, both the alleles express as a blend and neither allele is dominant over the other?

The possible number of chromosomal combinations are_____________

In _______ James Watson and Francis Crick proposed the structure of DNA.

Each trait studied in pea plant had ______ distinct form.

Mendel used___________ pea plants in his experiments.

A DNA molecule consists of _______ polynucleotide strands.

Cytocine always pair with______________

The first filial generation is denoted by____________

Among following which is an example of co-dominance?

Chromatin is made up of ___________

Expression of genotype in the form of trait is____________

Among following, which is the genotype of blood group O?

In artificial selection, bred plants are known as_____________

Charles Darwin publish a book “in the origin of species by means of Natural selection” in____

Chromosomes carry units of inheritance called as______________

All living things had been created in their current form only a few thousand years ago. This idea is known as________________

Genes contain instruction for the synthesis of _________

A cross in which only one trait is studied is called_______

How many types of differences shown by individuals of same species?