Select Board & Class
Difference between complete and incomplete linkage
difference between complete and incomplete linkage?
How is sex determined in human beings?
a,b,o blood grouping in human population exhibits 4 possible phenotype from 6 different genotypes.explain the different mechanism of inheritance envolved in exhibiting the possibility of 4 phenotypes and 6 genotypes?
can you explain the table 5.3 given on pg82,biology ncert book?
Express the genotype of AB blood group?
What is the difference between epistasis and dominance ?
which mendel's law of inheritance is universally accepted and without any exception.State the law.
What is the full form of IA
what is the difference between haemophilia and thalassemia?
what is self pollination?what's the difference between self pollination and cross pollination?
what is the difference between chromosome and gene?
explain the table in NCERT which differentiates b/w the two, i found both of them to be the same then where is the difference?
In a linear chromosome, map distances between four loci are as follows: a-b-10, b-c-4, a-d-3, a-c-6. the expected cross over frequency between c and d is-
c) either 3%or 9%
d)4% to 12%
plz provide the solution
Why the people having sickle cell anaemia disorder do not suffer from malaria?
in a particular plant species, majority of the plants bear purple flowers. Very few plants bear white flowers. No intermediate colours are observed. If you are given a plant bearing purple flowers, how would you ascertain that it is a pure breed for that trait???? plz explain.....
whatare complementary and supplementary genes?
Inheritance pattern of ABO blood groups in humans show dominance , co - dominance and multiple allelism. Explain each concept with the help of blood group genotypes.
two heterozygous parents are crossed.If the three loci are linked completely what would be genotypic ratio in F1 generation for a trihybrid cross?
what non parental gene combination?????
how to calculate the genotypic ratio for F3 and F4 generations for a monohybrid cross?
what is the axial and terminal position of flower?
Explain why law of segregation is also called law of purity of gametes?
Who proposed chromosomal theory of inheritance? Point out any 2 similarities in the behavior of chromosomes and genes
The chromosomes maps are not accurate maps because
(1) Crossing over frequency is higher than recombination frequency
(2) One crossing over interferes and increases the frequency of nearby crossing over
(3) Crossing over frequency decreases towards the ends of chromosome
(4) Heterochromation increases crossing over
investigatory project on genetics
how to analyse any trait by using pedigree analysis??
WHAT IS PEDIGREE ANALYSIS? DO YOU SUGGEST HOW THIS ANALYSIS IS USEFUL
Why mendel chose only pea plant for his experiments?
short note on sickle cell anemia
please explain the chromosomal theory of inheritance.
what the line "dominance is not an autonomous feature of a gene " means?????????????
what is meant by rudimentary ovaries?
is mirabilis jalapa & dogflower (snapdragon) is referred the same plant?
organism is heterozygous for 4 loci, how many types of gametes can be
In a certain mammal erect ears are dominant over drooping ears. In a cross between the 2 types, out of the offspring produced in the F2 generation 3 had erect ears and one had drooping ears. What were the genotypes of the parents. Work out the cross.
What is genome?How many genomes are present in one of our arm cell?
WHAT IS DOWNS SYNDROME ? GIVE ITS SYMPTOMS AND CAUSES
Differentiate between Mendelian disorders & chromosomal disorders. Give two examples of each.
A woman with O blood group marries a man with AB blood group(1)work out all the possible phenotypes and genotypes of the progeny.(2)discuss the kind of dominance in the parents and the progeny in this case
what are complementary genes and supplementary genes?
ratio of F2 generation in each case?
give reasons for
(I) both strands of DNA are not copied during transcription
(II)transcription and translation in bacteria can be coupled
what are the benefits of backcross and test cross??
what is the law of paired factors
Why do sons of a haemophilic father never suffer from this trait?
is it true that a haemophillic girl dies before birth and if yes than how??????if haemophilic males can survive then why not females?????
The human male never passes on the gene for haemophilia to his son .Justify the statement
the height of a plant is under the control of polygenic inhritance. the plant having genotype aabb has 20 cm height and height of plant having genotype AaBb is 50 cm what will be height of plant having AaBB genotype?
What is the difference between gamete and allele ? Explain with example
Lesch Nyhan disease is an X-linked recessive disorder that causes neurological disorder in human beings. A survey of 500 males from a Caucasian population revealed that 20 were affected with this disorder. What is the frequency of normal allele in this population?
when seeds form a cross b/w 2 plants of a certain species were germinated, they produced the following plants:-
30 tall plants with red fruits 20 dwarf plants with red fruits . it was shown that both tallness and red color were dominant characters in this plant but the genotypes of the parents of the corss were not known. explain why this results was obtained?
expalin reciprocal cross with an example?
in birds, is the sperm or the egg responsible for the of the chicks?
Copyright © 2020 Applect Learning Systems Pvt. Ltd. All rights reserved.
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)