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Biology: Genetics Review
Descripción
Review for my bio test
Sin etiquetas
biology
genetics
alleles
genes
mendel
ap exam
Test por
Julia Miranda
, actualizado hace más de 1 año
Más
Menos
Creado por
Julia Miranda
hace más de 9 años
21
0
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Resumen del Recurso
Pregunta 1
Pregunta
The diploid cell that the sperm and egg make when fertilized is called the...
Respuesta
Zygote
Homologous chromosome
Meiosis
Pregunta 2
Pregunta
Oogenesis yields...
Respuesta
4 sperm cells
A zygote
1 egg cell and 3 small polar bodies
Pregunta 3
Pregunta
Spermatogenesis yields...
Respuesta
1 egg
3 polar bodies
4 similar-sized sperm cells
Pregunta 4
Pregunta
Meiosis is the...
Respuesta
Replication and division of somatic cells
Replication and division of chromosomes
Replication and division of sex cells
Pregunta 5
Pregunta
One sex cell (1 sperm of 1 egg) is...
Respuesta
Haploid
Diploid
Pregunta 6
Pregunta
What separates during meiosis I?
Respuesta
Sister chromatids
Homologous chromosomes
Homozygous alleles
Pregunta 7
Pregunta
What separates during meiosis II?
Respuesta
Homologous chromosomes
Sister chromatids
Cells
Pregunta 8
Pregunta
What is synapsis?
Respuesta
The pairing of 2 homologous chromosomes during meiosis
The division of the cytoplasm
Exchange of genetic material
Pregunta 9
Pregunta
What is "crossing over"?
Respuesta
The pairing of 2 homologous chromosomes
The separation of dominant and recessive alleles
Exchange of genetic material between homologous chromosomes which results in recombinant chromosomes
Pregunta 10
Pregunta
During Metaphase I...
Respuesta
Homozygous alleles line up
Sister chromatids line up single-file
Homologous pairs line up in the middle
Pregunta 11
Pregunta
During Metaphase II...
Respuesta
Homologous pairs line up in the middle
Sister chromatids line up single-file
Recessive alleles appear in the phenotype
Pregunta 12
Pregunta
What does meiosis ultimately yield?
Respuesta
Four sperm cells
2 diploid cells
4 haploid cells
Pregunta 13
Pregunta
What does dominant mean?
Respuesta
Inherited characteristics which appear in an organism
Inherited characteristics carried by an organism
A genetic disease
Pregunta 14
Pregunta
What is the difference between genotype and phenotype?
Respuesta
Genotype is the physical or visible characteristics; phenotype is the genetic makeup
Genotype is the sex cells; phenotype is the somatic cells
Genotype is the genetic makeup; phenotype is the visible or physical characteristics
Pregunta 15
Pregunta
What is an allele?
Respuesta
Another word for gametes (sex cells)
One homologous chromosome
An alternative form of a gene
Pregunta 16
Pregunta
What is the difference between heterozygous and homozygous?
Respuesta
Homozygous means that the alleles controlling a characteristic are the same; heterozygous means they are different
Homozygous means the alleles controlling a characteristic are different; heterozygous means they are the same
Homozygous means that the chromosomes are defective; heterozygous means they are normal
Pregunta 17
Pregunta
What is a Punnett Square?
Respuesta
A fun little square you draw when you're bored
A chart that shows different sex cells
A diagram showing all the possible outcomes of a genetic cross between two individuals
Pregunta 18
Pregunta
What is Mendel's Law of Dominance?
Respuesta
Mendel is the supreme ruler of everyone, especially geneticists
Gene pairs separate during meiosis and recombine randomly at fertilization
Dominant genes mask recessive genes in heterozygous conditions
Pregunta 19
Pregunta
What is Mendel's Law of Segregation?
Respuesta
Dominant genes mask recessive genes in heterozygous conditions
Jeans of different colors cannot be near each other in your closet
Gene pairs separate during meiosis and recombine randomly at fertilization
Pregunta 20
Pregunta
What is incomplete dominance?
Respuesta
When genes cannot agree on where to go out to dinner
Pattern of inheritance where neither allele is dominant. Both alleles contribute to the phenotype
When the genotypes do not match the phenotypes
Pregunta 21
Pregunta
What is codominance?
Respuesta
Pattern of inheritance where neither allele is dominant
Pattern of inheritance where both alleles are dominant
Genetic equality
Pregunta 22
Pregunta
What are multiple alleles?
Respuesta
When there are multiple alleles for a trait
Where is are at least 10 different alleles for one trait
When one allele is responsible for several different traits
Pregunta 23
Pregunta
Where are linked genes carried?
Respuesta
One different chromosomes
In different cells
On the same chromosome
Pregunta 24
Pregunta
Where are unlinked genes carried?
Respuesta
On the same chromosomes and inherited together
On different cells and not even interacting
On different chromosomes and show independent assortment
Pregunta 25
Pregunta
What is a sex-linked trait, and who discovered them?
Respuesta
A trait which always appears no matter what, discovered by Gregor Mendel
A recessive trait, discovered by Copernicus
Genes that are carried on sex chromosomes, discovered by Thomas H. Morgan
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