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Bio 100 exam3 | Questions And Answers Latest {} A+ Graded | 100% Verified
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Bio 100 exam3 | Questions And Answers Latest {} A+ Graded | 100% Verified
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Bio 100 exam3 | Questions And Answers Latest {2024- 2025} A+ Graded |100% Verified
The term ______ refers to the outward expression of a trait, either physically, microscopically, or
metabolically. - Phenotype
The phenotype of an organizsm is determined by which ______ their chromosomes possess for a
specific trait. - alleles
This set of alleles is referred to as the organizsm's ______. - Genotype
Genes are located on ______ each chromosome contains one allele for each gene at a site called the
gene's ______. - chromosomes, locus
For diploid organisms, each cell contains ______ alleles for each trait, one allele on a chromosome from
the mother and the other on a chromosome from the father. - two
Chromosomes carry genes from parent to offspring and are distributed to gametes during ______ each
gamete receives one copy of each chromosome and therefore one allele for each ______. - meiosis,
gene
When viewing a dominant phenotype, the ______ can be unknown. - genotype
A dominant phenotype can be either homozygous dominant or ______. - Heterozygous
A _________ can determine the genotype of a dominant phenotype. - testcross
By mating the unknown dominant organism with a homozygous ____________ organism, the genotype
can be determined from the offspring. - recessive
If the unknown organism is homozygous dominant, all offspring will be ________. - dominant
, If the unknown is a heterozygote, there can be phenotypically ________ individuals in the offspring. -
recessive
Parents transmit information about traits to their offspring in units called ____. - Genes
A diploid individual contains two alternative forms, or ______, for each gene. - Alleles
IF the two alleles are the same, the individual is said to be ________, if the two alleles are different, the
individual is said to be __________. - Homozygous, heterozygous
THe particular alleles that an individual has are the individual's ______, whereas the appearance of an
individual is called it's _________. - Genotype, phenotype
Mendel observed the alleles can be dominant or ______, and the ______ allele typically masks the
expression of the other allele. - Recessive, dominant
When a single trait is affected by more than one gene locus, this is called _________________. -
Polygenic inheritance.
When a single gene locus affects more than one trait, this is called _____. - Pleiotropy
When a single gene locus has more than two possible alleles, this is called _________. - Multiple alleles.
When the phenotype of heterozygotes is intermediate between the homozygotes, this is called
__________. - Incomplete dominance
When the phenotype of heterozygotes shows some aspects of both homozygotes, this is called
_________. - Co-dominance
When alleles at one gene locus can interfere with the expression of alleles at another gene locus, this is
called _______. - Epistasis
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