Buscar
Estás en modo de exploración. debe iniciar sesión para usar MEMORY

   Inicia sesión para empezar

level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
the branch of science dealing with process of improvement of human race by selective breeding is calledeuphenics
theory of pangenesis was given bydarwin
the cranial capacity was largest among theneanderthal man
a baby has been born with a small tail. it is the case exhibitingatavism
homo sapiens implieshuman beings
a population is in hardy-weinberg equilibrium for a gene with only two alleles. if the gene frequency of an allele A is 0.7, the genotype frequency of Aa is ( calculate!)0.42
acc. to hardy-weinberg principle, allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. it makes several assumptionsrandom mating, sexual reproduction and non overlapping generations
which of the following was most similar to modern mancro-magnon man
we have lost all the direct evidences of origin of life only due todestruction of fossils on account of climatic changes
it belongs to the ginkgoales evolved during the jurassic period and is still existing without any morphological or anatomical changes.ginkgo biloba
complete development of foetal takes place in270-290 days in human also called the gestation period
why can't coacervates be the precursors of lifebecause they do not have lipid outer membrane and hence they cannot reproduce
who gave the theory of germplasmweismann
ancestral seed-eating stock of darwin's finches radiated out from south american mainland to different geographical areas of the galapagos islands, where they found competitor-free new habitatsdarwin's finches show a variety of beaks suited for eating large seeds, flying insects and cactus seeds
the earliest organisms that appeared on the earth were non-green and presumably anaerobesbecause of the reducing atmosphere and the first autotrops were chemoautotrophs
eohippus is the earliest fossil form in the phylogeny of horse and it was found in the periodeocene
jave ape-man, peaking man and heidelberg man are the fossils ofhomo erectus
homo erectus evolved fromhomo habilis
natural selection is the outcome of difference in survival and reproduction among individuals that show variation in one or more traitsadaptive forms of a given trait tend to become more common, less adaptive ones become less or disappear
organic compounds that first evolved in earth which required for origin of life wereprotien and nucleic acid
all life forms were inaquatic environment only