unit 4 quiz 1
Which of the following accurately contrasts genotype and phenotype?
A genotype is genetic traits that cannot be observed, while a phenotype refers to observable traits.
Which of the following identifies an argument raised by scientific opponents of biotechnology?
Biotechnology restricts livestock biodiversity.
Lucy possesses a gene for melanoma, so she chooses to stay out of the sun.
Genetic information is purely internally influenced.
Which of the following supports the argument that genetic selection improves animal welfare?
Genetic selection can modify aggressive behaviors.
Which scientist studied dominant and recessive traits through the pollination of pea plants?
Gregor Mendel
Explain two effects that the study of genes could have on the future.
In the future, new genetic mutations will arise, and knowing to understand genetics would be important in helping analyze the problem/mutation in genetic recombination.Genetics allows us to link diseases to one another by analyzing if they are recessive or dominant this allows us to be able to identify diseases and to determine their inheritance
In developing countries, which of the following is predicted to happen to both population and demand for meat and milk?
It will double by 2050.
Three DNA bases make up one amino acid.
Nirenberg
Dyes allow one to visually track chromosomes in DNA.
Sutton and Boveri
Which of the following explains why heritability is important to producers?
Traits vary in terms of inheritability and market value.
DNA is made up of a double helix.
Watson and Crick
Which of the following best supports the argument that there is a link between animal agriculture and human medicine?
Xenotransplantation uses animal organs in place of human donors.
Which term defines a version of a specific gene?
allele
A ranching co-op in Montana sends frozen semen from superior bulls to ranchers in a developing country in Africa.
artificial insemination
Mary imports frozen semen from Australia for her sheep ranch in Arizona.
artificial insemination
transfer of male sperm into a female animal without the need for mating
artificial insemination
transfer of the DNA in the nucleus of an animal's somatic cell to a female animal's egg cell
cloning
A rancher in Idaho develops a superior miniature horse and feeds her genetically engineered grain to induce her to superovulate.
embryo transfer
Joe develops a "super sheep" and harvests her eggs for implanting in other sheep in his herd.
embryo transfer
removal of a fertilized egg from one female animal and insertion in another
embryo transfer
An imperative geneticist is a researcher who studies the DNA of one species to apply it to another.
false
all hereditary information in organisms
genome
David identifies traits responsible for high milk production in his herd of dairy cows.
genomics
unobservable genetic information in organisms
genotype
Which of the following names an effect of increasing the livestock population through higher fertility rates?
improved animal-husbandry practices
Sarah and Bill found that Bill had no sperm count, so they researched alternatives for pregnancy.
in vitro fertilization
Which of the following identifies three problems facing cloning?
low survival rates, abnormal development, and susceptibility to disease??
Andrew identifies molecular signs of high meat quality in cattle for a 4-H lab project.
marker-assisted selection
observable traits in organisms
phenotype
Chris is fascinated with the idea of regenerating an extinct species of pigeon.
somatic cell nuclear transfer
In vitro fertilization consists of fertilization of the egg in a laboratory and then implantation of the fertilized egg in the female's uterus.
true
Probability is the likelihood of something happening.
true
The Human Genome Project sought to sequence the whole human genome.
true
What do both different alleles and same allele copies have in common?
two alleles
Which of the following explains when a recessive gene is passed on?
when both parents possess the recessive allele
