Question 21 MarkReduction in weight of the organism due to starvation is genetically controlled.AnswerTrueView full question & answer→
Question 31 MarkNew species may be formed. If $DNA$ undergoes significant changes in germs cells or chromosome number changes in the gameteAnswerTrueView full question & answer→
Question 41 MarkAn individual can pass on to its progeny the experiences of its lifetime.AnswerFalseView full question & answer→
Question 51 MarkTraits which are not inherited over generations do not cause evolution.AnswerTrueView full question & answer→
Question 61 MarkMenstruation usually lasts for about two to eight days.AnswerTrueView full question & answer→
Question 71 MarkBudding is an asexual reproduction method observed only in animals.AnswerFalseView full question & answer→
Question 81 MarkReproduction by production of bud is a common in yeast, hydra and bryophyllum.AnswerTrueView full question & answer→
Question 91 MarkSelf-pollination is considered better than cross pollination as far as variation is concerned.AnswerFalseView full question & answer→
Question 101 MarkPlants such as banana, orange, rose and jasmine that have lost the capacity to produce seeds can reproduce by vegetative propagation.AnswerTrueView full question & answer→
Question 111 MarkCopying of $DNA$ is a part of cellular reproduction.AnswerTrueView full question & answer→
Question 131 MarkThe size of population is determined through birthrate and death rate of organisms.AnswerTrueView full question & answer→
Question 141 MarkPrenatal sex determination is legal in our country.AnswerFalseView full question & answer→
Question 151 MarkThe ovaries contain thousands of immature eggs in newborn girl.AnswerTrueView full question & answer→
Question 161 MarkIn human, fertilisation occurs in vagina of female and embryo development occurs in uterus.AnswerFalseView full question & answer→
Question 171 MarkFallopian tubes come out from the vas deferens.AnswerFalseView full question & answer→
Question 181 MarkSecretion of the sex hormones starts at the puberty stage.AnswerTrueView full question & answer→
Question 191 MarkThe pollen grains produced in stamen are male reproductive cells.AnswerFalseView full question & answer→
Question 201 MarkIn sexual reproduction, $DNA$ content is doubled in zygote than the $DNA$ content of parents.AnswerFalseView full question & answer→
Question 221 MarkVariation is useful for the survival of species.AnswerTrueView full question & answer→
Question 231 MarkThe information of protein synthesis is stored in $DNA$ of a cell nucleus.AnswerTrueView full question & answer→
Question 241 MarkFragmentation is the simplest method of reproduction in unicellular animals like amoeba and leishmania.AnswerFalseView full question & answer→
Question 251 MarkNumber of organisms increase rapidly through asexual reproduction under unfavourable condition.AnswerFalseView full question & answer→