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Why mosquitoes are not affected by malaria and dengue

Posted by Rahul Yadav 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Rahul Yadav 6 years, 8 months ago

Because their lifestyle is very short so it is not matter that they are infected or not

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Bile juice contain

Posted by Tanvi Tanvi 6 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

K@Łp@N@ $Øđh!?? 6 years, 8 months ago

Bile juice contains no digestive enzymes, yet it is important for digestion. ... Bile juice has bile pigments such as bilirubin and biliverdin. These break down large fat globules into smaller globules so that the pancreatic enzymes can easily act on them. This process is known as emulsification of fats.

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Asif Raza 6 years, 8 months ago

Bile juice has bile pigments such as bilirubin and biliverdin. These break down large fat globules into smaller globules so that the pancreatic enzymes can easily act on them.

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Question pattern for2020

Posted by Mousumi Roy 6 years, 8 months ago

CBSE > Class 12 > Biology

0 answers

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Which diagrams of first unit reproduction is important

Posted by Shivam Nagar 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Maunisha Mallan 6 years, 8 months ago

male reproductive system .female reproductive system...anther diagram....vasectomy nd tubectomy daigrams..ovule...macrospore...semiferious tubule...

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Secondary producers are.....???

Posted by Harsh Yadav 6 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

K@Łp@N@ $Øđh!?? 6 years, 8 months ago

Producers include plants and algae. ... Consumers or heterotrophs are organisms that are directly (primary consumers) or indirectly (secondary and tertiary consumers) dependent on producers for their food.

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Sia ? 6 years, 8 months ago

Animals that consume plants are considered secondary producers since they 'produce' the biomass for their predators.

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Which is the best base book for ??????

Posted by Anshika Tiwari 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

K@Łp@N@ $Øđh!?? 6 years, 8 months ago

Ncert

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२०वी सदी में ऐसा कौन सा खोज था जीव विज्ञान का जो अनुवांशिक के लिऐ बहुत लाभदायक साबित हुआ।

Posted by Alok Kumar Shah 6 years, 8 months ago

CBSE > Class 12 > Biology

0 answers

ANSWER

Image of golgi apparatus

Posted by Prayonita Biswakarma 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

K@Łp@N@ $Øđh!?? 6 years, 8 months ago

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How to prepare Biology for board exam and which topics we cover it

Posted by Shivam Nagar 6 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

꧁≪Mämƭå ℭℏ۝ᑌĎℎàℜÿ? 6 years, 8 months ago

Read the chapter thoroughly from NCERT Book.....Solve back exercise questions....solve NCERT exemplar....and last but not the least solve previous years questions of that chapter......now after you have finished with it.....revise it over and again ... You will master the chapter ?....but don't try to mug up just try to understand.....

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Maunisha Mallan 6 years, 8 months ago

first try to cover all the ncert questions as well as the questions present inside the paragraph....

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Projects

Posted by Aadil Qureshi 6 years, 8 months ago

CBSE > Class 12 > Biology

0 answers

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Kidney disease

Posted by Mani Singh 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Meghna Thapar 5 years, 7 months ago

One of the best ways to test for CKD and assess kidney damage is a simple urine test which detects the presence of albumin. The smartphone app from Healthy.io enables lay users to conduct a urinalysis test at home and securely share results with their clinicians. The two main causes of chronic kidney disease are diabetes and high blood pressure, which are responsible for up to two-thirds of the cases. Diabetes happens when your blood sugar is too high, causing damage to many organs in your body, including the kidneys and heart, as well as blood vessels, nerves and eyes.

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Kidbey desiase

Posted by Mani Singh 6 years, 8 months ago

CBSE > Class 12 > Biology

0 answers

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Genitic code

Posted by Sanjay Nandal 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Sia ? 6 years, 8 months ago

Genetic code is the means by which DNA and RNA molecules carry genetic information in living cells.

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ANSWER

Provide question paper of 2019 cbse board of 12th class...plzzzzzz its urgent with sol.

Posted by Rubee Jaan 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Sia ? 6 years, 8 months ago

Check question papers here : https://mycbseguide.com/cbse-question-papers.html

2Thank You

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Explain the 5 factors that affect hardy-weinburg equilibrium?

Posted by Betty Thomas 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Gaurav Seth 6 years, 8 months ago

Five factors that affect Hardy-Weinberg equilibrium
are:
(i) gene migration or gene flow,
(ii)genetic drift,
(iii)mutation,
(iv)genetic recombination and
(v) natural selection.

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Agent of pollination

Posted by Mahesh Yadav 6 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

Ravi Kumar 6 years, 8 months ago

It has two types -abiotic and biotic. In abiotic pollination wind and water included and in biotic animals are included. Plants mostly used the biotic pollination while some plants often use the abiotic pollination. This is because there is more chance of pollination in biotic pollination than abiotic pollination. In biotic pollination plants are mostly used bees,bird, insects, and also some reptiles.

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K@Łp@N@ $Øđh!?? 6 years, 8 months ago

Pollinating agents are animals such as insects, birds, and bats; water; wind; and even plants themselves, when self-pollination occurs within a closed flower. Pollination often occurs within a species.

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How do algal bloom affect the life in water bodies???

Posted by Aaaaaaaa Bbbbbbbbb 6 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

Shivam Chaurasia 6 years, 7 months ago

By causing eutrophication.

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K@Łp@N@ $Øđh!?? 6 years, 8 months ago

Aquatic life is affected when they consume dissolved oxygen from the water body. ... Water body is polluted as the algal bloom spread over the water body such as lakes and they exhibit foul smell. Due to increase in concentration of nutrients in the water body the algal blooms grow at a faster rate.

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Define monosporic development

Posted by Vinay Kumar 6 years, 8 months ago

CBSE > Class 12 > Biology

0 answers

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What is meant by "Emasculation"???

Posted by Dãñīyã Arshãd? 6 years, 8 months ago

CBSE > Class 12 > Biology

5 answers

Dãñīyã Arshãd? 6 years, 8 months ago

Thnku @Kalpana Sodhi @Ravi Kumar @Yogita Ingle @Navjot Kaur

1Thank You

K@Łp@N@ $Øđh!?? 6 years, 8 months ago

Emasculation is the process of removing anthers from bisexual flowers without affecting the female reproductive part (pistil), which is used in various plant hybridization techniques. ... This ensures that the flower is pollinated by pollen grains obtained from desirable varieties only.

2Thank You

Ravi Kumar 6 years, 8 months ago

It is a process only in bisexual flowers in which male part from the flower should be removed to obtain required species by forming it unisexual flower.

1Thank You

Yogita Ingle 6 years, 8 months ago

Emasculation is the process of removal of stamens from a bisexual flower before they shed pollen in order to prevent self-pollination and permit cross-pollination of . stigma with unwanted pollen. During breeding, the breeder wants to make sure that the desired pollen grains are used for pollination and the stigma is protected from contamination (from unwanted pollen).

1Thank You

Navjot Kaur 6 years, 8 months ago

Emasculation is the process in which stamen are removed from the plant by different methods .

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What is wolfian duct

Posted by Soumya Kumari 6 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

K@Łp@N@ $Øđh!?? 6 years, 8 months ago

Wolffian ducts (WDs) are the embryonic structures that form the male internal genitalia. These ducts develop in both the male and female embryo. However, in the female they subsequently regress, whereas in the male they are stabilised by testosterone.

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Dãñīyã Arshãd? 6 years, 8 months ago

These are the embryonic structures forming male internal genitalia. They develop in both the male and female embryos

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On what basis is the skin colour in humans considered polygenic

Posted by Lakshya Tanwar 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Rani Jojo Jojo 6 years, 8 months ago

Skin colour is controlled by 3 pairs of genes.Hence polygenic.

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A person has been diagnosed as hIV positive. (a) name the test which the person underwent . (b) write full name of pathogen involved and describe its structure. (c)what/which particular cells of this person are likely to get destroyed

Posted by Ramehar Phogat 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Rani Jojo Jojo 6 years, 8 months ago

ELISA test priliminary test and if +ve confirm test Western blot test. Pathogen Human Immuno Viruses consists of protein coat called capsid and an envelop made of polysaccharide.It consists of Single stranded RNA as its genetic material. It enters into macrophage and helper T cells.

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What is a phenocopy

Posted by Sanjeev Sanjeev 6 years, 8 months ago

CBSE > Class 12 > Biology

3 answers

K@Łp@N@ $Øđh!?? 6 years, 8 months ago

an individual showing features characteristic of a genotype other than its own, but produced environmentally rather than genetically.

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Gaurav Seth 6 years, 8 months ago

A phenocopy is a variation in phenotype which is caused by environmental conditions, such that the organism's phenotype matches a phenotype which is determined by genetic factors. It is not a type of mutation, as it is non-hereditary. The term was coined by Richard Goldschmidt in 1935.

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Minhajul Islam 6 years, 8 months ago

Under the normal condition different genotype expresses different phenotype but by changing environment when different genotypes expresses the same phenotype will be treated as phenocopy.

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In bordexamination question can ask from ncrt exersise

Posted by Kaushik Khatediya 6 years, 8 months ago

CBSE > Class 12 > Biology

3 answers

Ravi Kumar 6 years, 8 months ago

From ncert book

0Thank You

Arjita Singh 6 years, 8 months ago

In board are asked mainly the the ncert only only some of them come from other refrence books

1Thank You

Amaresh Khened 6 years, 8 months ago

May be , or may not be. Mainly the examples in the text book

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What is vaccine ? Give an example of vaccine produce by recombination technology

Posted by Ramehar Phogat 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Sia ? 6 years, 8 months ago

- Vaccines are antibody provoking agents.
- Hepatitis B vaccine is produced by using rDNA technology.

1Thank You

ANSWER

Name the plant that show incomplete dominance in respect to colour of flower

Posted by Basanti Rawat 6 years, 8 months ago

CBSE > Class 12 > Biology

3 answers

Srishti Kame 6 years, 8 months ago

Mirabilis jalapa

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Abhiyank Rajouria 6 years, 8 months ago

Snapdragon flower

3Thank You

Shalini Sharma 6 years, 8 months ago

Pea flower

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Give one point of difference between FERTILISATION and SYNGAMY

Posted by Vishal Kumar 6 years, 8 months ago

CBSE > Class 12 > Biology

0 answers

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10Diff between dna. And rna

Posted by Anoop Bevinagidad 6 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

K@Łp@N@ $Øđh!?? 6 years, 8 months ago

DNA is a double-stranded molecule while RNA is a single-stranded molecule. DNA is stable under alkaline conditions while RNA is not stable. ... DNA and RNA base pairing is slightly different since DNA uses the bases adenine, thymine, cytosine, and guanine; RNA uses adenine, uracil, cytosine, and guanine.

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Rani Jojo Jojo 6 years, 8 months ago

DNA_ deoxyribonucleic acid,mostly act as genetic material,double stranded,with base pairing,bases are A,C,T,G. Sugar is of deoxy ribose,more stable,seen in nucleus and only same type,less frequency of mutation. RNA_Ribonucleic acid,genetic material in virus,single strand ed, without base pairing,basea are ACUG,Sugar is of ribose less stable,seen in nucleus as well as cytoplasm,three types mRNA,tRNA,rRNA,OFTEN MUTATES.

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How to make case study on the topic cancer??

Posted by Vishakha Dixit 6 years, 8 months ago

CBSE > Class 12 > Biology

1 answers

Dhanyaa Suba Balamurugan 6 years, 8 months ago

Define cancer , its cause , its treatment, take 2 patients and study their cancer growths and sensus of cancer patients and the treatment technology.refer ngo also List the types of cancer and elobarate them with symptoms of a patient.refer cancer institute .

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Why large animals have greater risk of extinction

Posted by Deep M 6 years, 8 months ago

CBSE > Class 12 > Biology