Ask questions which are clear, concise and easy to understand.

Ask Question
  • 3 answers

Krishna Chaitanya 1 week, 4 days ago

Francis crick

Sanju Gm 1 month, 3 weeks ago

Francis crick

Yogita Ingle 2 months, 2 weeks ago

Francis Crick in 1956 proposed the hypothesis of Central Dogma This explains the flow of genetic information in any biological system.

  • 5 answers

Faizan Shaikh 2 months ago

8 gametes

Siddharth Bainsla 1 month, 2 weeks ago

8gametes

Nikita Dhankhar 2 months, 3 weeks ago

8

Kirat Pal Singh 2 months, 3 weeks ago

8

Gaurav Seth 2 months, 3 weeks ago

Four

AaBbCC will produce 4 types of gametes which are as follows- ABC, AbC, aBC, abC. The number of gametes formed is decided by the number of heterozygous alleles present in the given genotype. 2^n is the formula used to find it out, where n=number of heterozygous alleles present in the genotype. Say for example, in the above genotype Aa & Bb are the 2 heterozygous alleles, so here n=2. Putting the values in the formula , we get 2^2=4. Hence 4 types of gametes are formed.

  • 3 answers

Mohit Pandey 3 weeks, 5 days ago

No bro

Geethu Priya 1 month, 1 week ago

89

Susil Kumar Prusty 1 month, 4 weeks ago

How to add 12+62=
  • 5 answers

Raghavendra Illale 1 month, 1 week ago

DC pandey

Sanju Gm 1 month, 3 weeks ago

A-Z error less

Fiato Dioke 1 month, 3 weeks ago

Entrance Exam physics NEET-UG

Akisikth Riesz 2 months, 2 weeks ago

Arihant objective physics by DC Pandey

Jazz Gi 2 months, 3 weeks ago

Hc Verma
  • 2 answers

Surisetty Udayasri 4 weeks, 1 day ago

Mallow family🤔

Yogita Ingle 2 months, 4 weeks ago

The mallow family (Malvaceae) contains some 243 genera and at least 4,225 species of herbaceous plants, shrubs, and trees distributed nearly worldwide.

  • 3 answers

Surisetty Udayasri 4 weeks, 1 day ago

It is mitochondria and also called as power house of the cell and ntg but organelle

Akisikth Riesz 2 months, 2 weeks ago

It is not micro Condriya . It is Mitochondria. This is the energy currency of the cell.
Mitochondria is power House of cell
  • 3 answers

Surisetty Udayasri 4 weeks, 1 day ago

V=ir

Raghavendra Illale 1 month, 1 week ago

The current flowing through the conducter is directly proportional to the potential difference across the ends of the conductor provided temperature and others physical quantities remain same..V=IR

Yogita Ingle 3 months, 1 week ago

Ohm’s Law

  • Ohm’s law is named after the scientist Ohm who gave this law.
  • According to the Ohm’s law current flowing through a conductor is directly ∝ to the potential difference applied between the ends of the conductor.
  • This means if the potential difference applied at the ends increases then the current flowing through the conductor also increases and vice-versa.
  • Mathematically
    • Current flowing through the conductor I ∝ V where V is the potential difference applied at the ends of the conductor.
    • Or I=(constant) V where constant = 1/R where R =resistance of the conductor
    • => I=(1/R)V
    • =>V=IR
  • 1 answers

Sanju Gm 1 month, 3 weeks ago

When benzoic acid is heated in presence of a strong dehydrating agent like P2O5 or H2SO4, it forms benzoic anhydride
  • 2 answers

Surisetty Udayasri 4 weeks, 1 day ago

Dont understand brother

Yogita Ingle 3 months, 2 weeks ago

In molecular cloning, a vector is a DNA molecule used as a vehicle or carrier which carries the desired gene from donor to recipient cell, where it can be replicated and/or expressed. The plasmid is extrachromosomal circular DNA which acts as vector DNA. The plasmid is the most important vector as it possesses multiple cloning sites, an origin of replication and a selectable marker.

  • 0 answers
  • 2 answers

Dharmveer Sharma 3 months, 2 weeks ago

genetics notes... https://1drv.ms/b/s!ArpWV25_ecwqnmzVtr9ihvB_c3rY?e=dd7iSe

Biology Learning 3 months, 2 weeks ago

What is a filling
  • 0 answers
  • 1 answers

Pappu Yadav 3 months, 3 weeks ago

1jul
  • 1 answers

Yogita Ingle 3 months, 3 weeks ago

Argyrol is a silver sol and is used as an eye lotion. It is manufactured in the chemical industry to pharmaceutical-grade only, using denatured pharmaceutical-grade protein for ophthalmic application and elemental silver, to produce the silver protein molecule.
Also, colloidal antimony (kajal) has been found effective in treating eye diseases.

  • 2 answers

Meghna Thapar 3 months, 3 weeks ago

In angiosperms, flower is the reproductive organ of the plant. Stamen, the male reproductive part of flower, is made up of anther and filament. Carpel is the female reproductive part and is composed of stigma, style and ovary. The flower may be unisexual that is, it contains either stamens or carpels or bisexual which contains both stamens and carpels. Stamen produces pollen grains that are yellowish in colour. The ovary contains ovules and each ovule has an egg cell. When a pollen grain falls on the stigma of the carpel, it bursts open and grows into a pollen tube downwards through the style towards the female gamete in the ovary. A male gamete moves down the pollen tube and enters the ovule in the ovary. The tip of the pollen tube bursts open and male gamete comes out of the pollen tube which combines with the nucleus of the female gamete present in the ovule to form a fertilised egg called zygote. 

 

The pollen needs to be transferred from the stamen to the stigma. The transfer of pollen grains from the anther of a stamen to the stigma of a carpel is called pollination.

If this transfer of pollen occurs in the same flower, it is referred to as self-pollination but if the pollen is transferred from one flower to another, it is known as cross-pollination. The process of pollination is achieved by agents like wind, water or animals. After the pollen lands on a suitable stigma, it has to reach the female germ-cells which are in the ovary. For this, a tube grows out of the pollen grain and travels through the style to reach the ovary. The fertilised egg divides several times to form an embryo within the ovule which develops a tough coat around it and is gradually converted into a seed. The ovary of the flower develops and becomes a fruit with seeds inside it.

Yogita Ingle 3 months, 3 weeks ago

  • The process of fusion of one male gamete with the egg along with the union of the second male gamete with the two polar nuclei or the secondary nucleus is called double fertilisation.
  • Out of the two male gametes, one fuses with the egg to carry out generative fertilisation or syngamy. It gives rise to a diploid zygote or oosphere.
  • The nucleus of the second male gamete fuses with two haploid polar nuclei or diploid secondary nucleus of the central cell to form a triploid primary endosperm nucleus (PEN). The central cell is called primary endosperm cell (PEC). This is called vegetative fertilisation or triple fusion
  • 5 answers

Lakshmi Prasanna Maddireddy 3 weeks, 3 days ago

brown colour

Surisetty Udayasri 4 weeks, 1 day ago

It is in reddish broen in colour and 2nd largest organ of human body

Pragati Deshmukh 2 months, 1 week ago

Reddish brown in colour and it is because of the cell of liver

Ritika Kumari 3 months, 2 weeks ago

Reddish brown in colour

Yogita Ingle 3 months, 4 weeks ago

Liver is the largest gland and second largest organ of Human Body. It can weigh up to 1.3 to 1.6 Kg for a human adult and is a reddish brown in colour.

  • 1 answers

Sanju Gm 1 month, 3 weeks ago

qualitative nuclear division —used of the meiotic reduction division in the heterogametic ***.
  • 4 answers

Lakshmi Prasanna Maddireddy 3 weeks, 3 days ago

humidity & temparature are the 2 environmental factors that affect pollen viability.

Pragati Deshmukh 2 months, 1 week ago

This is also the answer that is highly variable

Bhavya Pandey 3 months, 2 weeks ago

This is bad app

Mukesh Beniwal 4 months, 1 week ago

1. Temperature 2. Humidity
  • 0 answers
  • 0 answers
  • 2 answers

Aman Usmani 3 months, 3 weeks ago

Characters

Yogita Ingle 4 months, 1 week ago

Heredity is a process in which organisms acquire characteristics from their parents. These characteristics are called traits. Every individual is unique because they have a unique set of traits. The traits which are transmitted by the parent to its offspring during the process of fertilization are inherited traits. This inheritance is determined by certain rules of heredity. Inherited traits are coded in our DNA and hence can be passed on to the next generation. Example: Eye colour, height, Complexion, Color of hair etc.

  • 2 answers

Anjali Verma 1 month, 2 weeks ago

Sanju Gm

Sanju Gm 1 month, 3 weeks ago

[Rhododendron arboreum] Burans

myCBSEguide App

myCBSEguide

Trusted by 70 Lakh Students

CBSE Test Generator

Create papers in minutes

Print with your name & Logo

Download as PDF

3 Lakhs+ Questions

Solutions Included

Based on CBSE Blueprint

Best fit for Schools & Tutors

Work from Home

  • Work from home with us
  • Create questions or review them from home

No software required, no contract to sign. Simply apply as teacher, take eligibility test and start working with us. Required desktop or laptop with internet connection