Quiz
NCEA level 1 Genetics
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Perguntas do quiz (39)
1Different forms of the same gene - they can be dominant or recessive
- Aallele
- Btrait
2a fertilized ovum/egg that contains the full set of chromosomes
- Azygote
- Bgamete
3allele which is always expressed even if only one is present- written with an upper-case letter e.g. "A"
- Adominant
- Brecessive
4threadlike structure of DNA and protein found in the nucleus of cells- carries genetic information in the form of genes
- Anucleotide
- Bchromosome
- Ccell
5cell part that contains chromosomes
- Anucleus
- Bgene
6meiosis
- Acell division in testies and ovaries producing four new cells (gametes) - genetically different to each other, and to the parent cell
- Bcell division body cells for growth and repair - produces 2 new cells genetically identical to each other and to the parent cell
7exchange of genetic information between homologous chromosomes
- Acrossing over
- Bindependent assortment
8cross between unknown genotype organism and a homozygous recessive to work out the genotype of the offspring
- Apunnet square
- Btest cross
9short length of DNA that carries the genetic code for a particular trait/characteristic or cell activity
- ADNA
- Bchromosome
- Ccell
- Dgene
10having the same structural features (length) and pattern of genes
- Ahomozygous chromosomes
- Bvariation
- Chomologous chromosomes
- Dmutation
11a genetically determined characteristic
- Atrait
- Ballele
- Cgene
12cell division body cells for growth and repair - produces 2 new cells genetically identical to each other and the parent cell
- Amitosis
- Bmeiosis
13process responsible for forming new alleles
- Amutation
- Bvariation
- Cindependent assortment
14chromosomes X and Y that determine the sex of an individual
- Asex chromosomes
- Bhomologous chromosomes
- Cgamete
15individuals that are homozygous - will always produce the same offspring when crossed together
- Apure breeding
- Bsexual reproduction
16pest infestation, disease, drought or flood could be examples of a... Changing environment
- AVerdadeiro
- BFalso
17having a full set of chromosomes (2n); having a pair of each type of chromosome
- Adiploid
- Bhaploid
18organisim produced asexually from one parent - offspring identical to both its parent and siblings
- Aclone
- Bhomozygous
19substance carrying organism's genetic information
- Adeoxyribonucleic acid
- Bchromosome
20difference between organisms within a population - can be continuous or discontinuous
- Avariation
- Bmutation
21the observable characteristics of an individual resulting from its genotype
- Aphenotype
- Bgenotype
22forms the basic stuctural unit of DNA, composed of a sugar molecule, a phosphate group and a base
- Anucleotide
- Bamino acids
23basic building blocks of proteins
- Aamino acids
- BDNA
24the particular alleles of an organisim
- Agenotype
- Bphenotype
25an individual with two alleles that are different for a particular trait
- Aheterozygous
- Bhomozygous
26an individual with two alleles that are the same for a particular trait
- Ahomozygous
- Bheterozygous
27individual that carries a gene for a particular trait, does not express the trait, but can pass that trait on
- Acarrier
- Brecessive
- Cclone
28sexual reproduction involves two parents - offspring are different to the parent and to each other
- AVerdadeiro
- BFalso
29the joining of the male and female gamete is called fertilization
- AVerdadeiro
- BFalso
30recessive
- Aallele which is only expressed when two of them are present - written in a lower-case letter E.g. 'a'
- Ballele which is always expressed even if only one is present - written with an upper-case letter E.g. 'A'
31name for the offspring of the cross BB x bb and their offspring and their offspring...
- AF1 generation
- BF2 generation
- CF3generation
32What are the parts of DNA involved in pairing
- Acytosine
- Bguanine
- Cadenine
- Dthymine
- Enucleotide
33gamete
- Areproductive cells that contain half the number of chromosomes compared to the parent cell
- Bbody cells that contain the same number of chromosomes as the parent cell
34important to population and species survival in a changing environment
- Avariation
- Bclones
- Cindependent assortment
35a chart that shows all the possible combinations of alleles that can result from a genetic cross
- Apunnet square
- Btest cross
- Cpedigree chart
36carries instructions to the next generation and determines phenotype
- ADNA
- Bchromosomes
- Cgenes
37a permanent change in the base sequence of DNA
- Amutation
- Bvariation
38asexual reproduction
- Areproduction involving only one parent (usually female) - offspring genetically identical to the parent and each other
- Breproduction involving two parents - offspring different to the parents
39each homologous pair of chromosomes lines up at equator - maternal or parental - independently of other homologous pairs
- Aindependent assortment
- Bcrossing over
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