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Some humans are able to roll their tongue, while others are not. Two parents (both tongue-rollers) have four children, Some of them are tongue rollers and some of them are not. Which of the following statements hold true regarding this?
(i) The allele for tongue-rolling is dominant
(ii) The probability that their next child will be a tongue-roller is 0.5.
(iii) The probability that their next child will not be a tongue-roller is 0.75.
(iv) Both parents have one allele for tongue-rolling and one allele for non-tongue-rolling.

List all the chemical reactions which are used in kitchen

_________ is a tabular representation of inheritance of a particular disease or trait among the individuals of many generations of a family.

Population grows by__.

Statement 1 : Lamarck believes in use and disuse of organs.

Statement 2: Characters present in the offspring are independent of those in their parents.

Which of the following is the genetic material of Retrovirus?

Animals with notochord are called:

A woman with blonde curly hair married a man with black soft hair. All of their children in first-generation had black soft hair but next-generation children had different combinations is ratio 9:3:3:1. State the law that governs this expression.

What is adrenaline? And how it works?

Name the membrane that allows solvent molecules to pass through it.

Trochlear nerve supplies

Which part of female reproductive system is blocked in tubectomy?

Name the ancestor of the following :
Broccoli, Kohlrabi, Kale

I hear more things on platelets. What exactly are platelets and what do they do?

Germplasm characterisation under different field condition ensures

Cytoplasmic division of an animal cell is called:

In which triploblastic animal, coelom is absent?

The sign of family welfare in India is:

Which part is common in both reproductive and excretory systems?

Which of the following are NOT the characteristics of root hair to draw water from the soil?

Which among the following are the actions of the parasympathetic nervous system?

Inhalation of air takes place through the ____.

The blood brain barrier in brain exist in ___

Which is the strongest muscle of the body?

Glucagon is secreted by the

Q57. Government has recently inaugurated the training of trainers programme for Sendai Framework. Consider the following statements with regard to Sendai Framework:

1. Sendai Framework is concerned with Disaster Risk Reduction.

2. The framework aims to reduce global disaster mortality by 2030

3. India is a signatory to the framework.

Select the correct answer using the code given below:

Which of the following helps in maintaining posture and balance of the human body ?

(a) cerebellum

(b) cerebrum

(c) medulla

(d) pons

The initial portion of the nasal cavity is called___ which is lined with stratified squamous epithelium.

Name tht three types of papillae. Which of these bear taste buds?what is the role of third type.

Which were the three biologists who independently rediscovered Mendel's principles in 1900 AD?

Which among the following statements are true:

Which among the following accelerates elonagtion of stem?

Cell division serves the following functions: ______________, _____________ and___________.Mitosis helps in ___________, ___________and________________. DNA replication happens once during__________ followed by_____________. Humans have___________ chromosomes i.e. diploid condition.

In meiosis, parent cells are _______________ while daughter cells are ______________________. Meiosis occurs with two cell divisions – first is reduction division and second is mitotic division. In simple organisms all germ cells are generally similar. In complex organisms, germ cells take on differential roles. The egg is generally large and contains a food source. The sperm is small and motile. Conventionally, __________________ germ cells are called the male gamete.

Colchicine is a chemical that stops chromatids from separating during mitosis.

Which phase will the cell reach and then stop dividing?

There is a general belief that forests tend to bring more frequent rains. Can you explain it scientifically ?

Differentiate between each of the following pairs with reference to the aspect asked within brackets:
(a) Erythrocytes and leucocyte (function)
(b) Artery and vein (direction of blood flow)
(c) Artery and vein (the type of blood primarily flowing through)
(d) Tricuspid and bicuspid valves (location).

1.In grafting, plant which is selected for its roots and this is called the scion.

2. In grafting,plant which is selected for its stems, leaves, flowers, or fruits and is called the stock

If a person is reading a novel, then his ciliary muscles:

Rod cell: Rhodopsin :: Cone cell : __________

Which of the following statements about photosynthesis is true?