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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
term used to describe a cell which has two sets of genetic informationDiploid
A part of a cell where chromosomes are foundnucleus
The cord attached to a human fetus to the placentaumbilical cord
A group of similar organisms that interbreed to produce offspringspecies
the number of pairs of chromosomes in a human body cellstwenty three
Type of cell which has a cell wallPlant
The shape of DNADouble helix
type of variation where the characteristics can be used to divined up a population into distinct groupsDiscrete variation
The four letters used to represent the four bases of DNAAT GC
Factors which affect normal development of an embryoteratogens
A change in the number or structure of chromosomesmutation
Fertilisation happen hereoviduct
sperm, eggs, pollrn and ovules are thesegametes
A piece of information on a chromosomegene
an organism which can produce gametes that are viable to be said thisfertile
define a speciesa group of similar organisms that interbreed to produce fertile offspring
explain fertilean organism can produce gamest that are viable
explain what infertile and sterile meansterile means that an organism is unable to produce gametes that are fertile
give an example of similar organisms that interbreed to produce hybrid offspring which is sterileliger, mule
Describe discrete variationa characteristic that can be used to dived up the population into distinct groups like hair eye colour
describe continuous variationa characteristic that varies from on extreme to another like how much you way
what does genetic information statethe characteristics or appearance of an organism
state that normal body cells are diploids and have two sets if chromosomesyes
at Fertilisation the zygote is diploid gaining a chromosome set from each gameteyes
how many pair of chromosomes in a normal human body cell23 pairs
where does human fertilisation startoviduct
what is the next stage of when a zygote divides into more cells calledblastocyst