Genetics
Quiz by Josh Beam
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25 questions
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- Q1If blue eyes is recessive to brown eyes, what causes someone to have blue eyes?the mother eating blueberries during pregnancyreceiving the blue-eyed trait from just one parentbeing born in Swedenreceiving a blue- eyed trait from both parents60s
- Q2In cats, short hair (H) is dominant to long hair (h). If a cat that is homozygous for short hair is crossed with a cat that has long hair, what is the probability the offspring from this cross will have short hair?25%50%100%0%60s
- Q3After fragmentation and budding, which of the following do the new planarian and hydra have in common with the original planarian and hydra?The offspring have 1/2 the amount of chromosomes as the parentThe offspring have genetically different DNA from the parentThe parent and the offspring have the same DNA60s
- Q4In plants, tall plants (T) are dominant to short plants (t). The cross of two heterozygous plants is shown in the Punnett square. What ratio describes the most probable phenotypes resulting from this cross?2 tall: 2 short3 tall: 1 short3 short: 1 tall4 tall: 0 short60s
- Q5A cross of a plant with white flowers (WW) and a plant with red flowers (ww) is shown in the Punnett square. Which of the choices accurately describes the genotype and phenotype of the offspring from this cross?Homozygous and redHeterozygous and redHeterozygous and whiteHomozygous and white60s
- Q6When a sperm cell combines with an egg cell, as noted in the picture, it is known asfermentationfertilizationfactualizationphotosynthesis60s
- Q7The characteristic for curly hair (C) is dominant to the characteristic for straight hair (c). A cross between 2 individuals for hair type is shown in the Punnett square in the picture. What must the genotype of the parents be to produce the results shown in the Punnett square?heterozygous x homozygous recessive (Cc x cc)homozygous dominant x homozygous recessive (CC x cc)homozygous dominant x heterozygous (CC x Cc)heterozygous x heterozygous (Cc x Cc)60s
- Q8A pea plant with genes that are homozygous for round seeds is crossed with a pea plant that is homozygous for wrinkled seeds. Which statement correctly predicts the results of the genetic cross?The genotypes will be all homozygous dominantThe phenotype will be roundThe phenotype will be wrinkledThe genotypes will be all homozygous recessive60s
- Q9The genotypic ration of the punnett square shown in the picture will be3:11:2:14:02:260s
- Q10If (D) Dark hair is dominant to (d) light hair, what % of the outcome is likely to have light hair if a heterozygous man and a homozygous woman had children?100%75%50%25%60s
- Q11If the outcome of a punnett square is 100% heterozygous, what was the genotype of the parents?AA x AaAa x AaAA x aaAa x aa60s
- Q12If a homozygous dominant person with a widow's peak (WW) crosses with a person with no widow's peak (ww) and the outcome is 100% widow's peak, what would be the outcome if 2 heterozygous (Ww x Ww) widow's peak people had children?25% Widow's Peak50% Widow's Peak75% Widow's peak100% Widow's Peak60s
- Q13When a farmer breeds his best milk cow to make more milk cows, he is usingmagicgenetic engineeringselective breeding60s
- Q14When scientists change or manipulate genes/DNA, it is known asWingardium Leviosamagicgenetic engineeringselective breeding60s
- Q15When an organism's DNA sequence has been changed or altered due to radiation or errors in DNA replication, it is known as amutationgenetic engineeringAlohomoraselective breeding60s
