Test
Biology: Genetics Review
Preguntas del test (25)
1The diploid cell that the sperm and egg make when fertilized is called the...
- AZygote
- BHomologous chromosome
- CMeiosis
2Oogenesis yields...
- A4 sperm cells
- BA zygote
- C1 egg cell and 3 small polar bodies
3Spermatogenesis yields...
- A1 egg
- B3 polar bodies
- C4 similar-sized sperm cells
4Meiosis is the...
- AReplication and division of somatic cells
- BReplication and division of chromosomes
- CReplication and division of sex cells
5One sex cell (1 sperm of 1 egg) is...
- AHaploid
- BDiploid
6What separates during meiosis I?
- ASister chromatids
- BHomologous chromosomes
- CHomozygous alleles
7What separates during meiosis II?
- AHomologous chromosomes
- BSister chromatids
- CCells
8What is synapsis?
- AThe pairing of 2 homologous chromosomes during meiosis
- BThe division of the cytoplasm
- CExchange of genetic material
9What is "crossing over"?
- AThe pairing of 2 homologous chromosomes
- BThe separation of dominant and recessive alleles
- CExchange of genetic material between homologous chromosomes which results in recombinant chromosomes
10During Metaphase I...
- AHomozygous alleles line up
- BSister chromatids line up single-file
- CHomologous pairs line up in the middle
11During Metaphase II...
- AHomologous pairs line up in the middle
- BSister chromatids line up single-file
- CRecessive alleles appear in the phenotype
12What does meiosis ultimately yield?
- AFour sperm cells
- B2 diploid cells
- C4 haploid cells
13What does dominant mean?
- AInherited characteristics which appear in an organism
- BInherited characteristics carried by an organism
- CA genetic disease
14What is the difference between genotype and phenotype?
- AGenotype is the physical or visible characteristics; phenotype is the genetic makeup
- BGenotype is the sex cells; phenotype is the somatic cells
- CGenotype is the genetic makeup; phenotype is the visible or physical characteristics
15What is an allele?
- AAnother word for gametes (sex cells)
- BOne homologous chromosome
- CAn alternative form of a gene
16What is the difference between heterozygous and homozygous?
- AHomozygous means that the alleles controlling a characteristic are the same; heterozygous means they are different
- BHomozygous means the alleles controlling a characteristic are different; heterozygous means they are the same
- CHomozygous means that the chromosomes are defective; heterozygous means they are normal
17What is a Punnett Square?
- AA fun little square you draw when you're bored
- BA chart that shows different sex cells
- CA diagram showing all the possible outcomes of a genetic cross between two individuals
18What is Mendel's Law of Dominance?
- AMendel is the supreme ruler of everyone, especially geneticists
- BGene pairs separate during meiosis and recombine randomly at fertilization
- CDominant genes mask recessive genes in heterozygous conditions
19What is Mendel's Law of Segregation?
- ADominant genes mask recessive genes in heterozygous conditions
- BJeans of different colors cannot be near each other in your closet
- CGene pairs separate during meiosis and recombine randomly at fertilization
20What is incomplete dominance?
- AWhen genes cannot agree on where to go out to dinner
- BPattern of inheritance where neither allele is dominant. Both alleles contribute to the phenotype
- CWhen the genotypes do not match the phenotypes
21What is codominance?
- APattern of inheritance where neither allele is dominant
- BPattern of inheritance where both alleles are dominant
- CGenetic equality
22What are multiple alleles?
- AWhen there are multiple alleles for a trait
- BWhere is are at least 10 different alleles for one trait
- CWhen one allele is responsible for several different traits
23Where are linked genes carried?
- AOne different chromosomes
- BIn different cells
- COn the same chromosome
24Where are unlinked genes carried?
- AOn the same chromosomes and inherited together
- BOn different cells and not even interacting
- COn different chromosomes and show independent assortment
25What is a sex-linked trait, and who discovered them?
- AA trait which always appears no matter what, discovered by Gregor Mendel
- BA recessive trait, discovered by Copernicus
- CGenes that are carried on sex chromosomes, discovered by Thomas H. Morgan
Información
- Descripción
- Review for my bio test
- Autor
- Julia Miranda
- Idioma
- English
- Visitas
- 40
- Etiquetas
- Valoración
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