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MBG 2040QUIZ 1 ANSWERS.
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MBG 2040 / MBG2040 QUIZ 1 ANSWERS Question 1 0 / 1 point In pea plants round seeds are dominant over wrinkled. The gene responsible for this trait exhibits typical Mendelian expression and is designated with a D for the dominant allele and with a d for the recessive allele. If two heterozygote...

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  • May 30, 2022
  • 20
  • 2020/2021
  • Exam (elaborations)
  • Questions & answers

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  • mbg 2040quiz 1 answers

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MBG 2040 / MBG2040 QUIZ 1 ANSWERS
Question 1 point
In pea plants round seeds are dominant over wrinkled. The gene
responsible for this trait exhibits typical Mendelian expression and is
designated with a D for the dominant allele and with a d for the
recessive allele. If two heterozygote plants are crossed (Dd x Dd) this
would be considered a _ .

Homozygous Cross


Dihybrid Cross


Monohybrid Cross

Heterozygous Cross

Question 0/1
2 point




In reference to the pedigree above, what is the most likely mode of
inheritance for the trait indicated with solid black shapes?

Homozygous

, Autosomal Recessive


Sex-linked

Autosomal Dominant

Question 0/1
3 point
When a gene mutation results in an overactive or over produced
gene product this is said to be a .

Hypomorphic Allele


Neomorphic Allele

Hypermorphic Allele


Null Allele

Question 0/1
4 point
A pair of chromosomes with the same array of genes, with
one
chromosome derived from the female parent and one derived from
the male parent are called _ _.

Chromosomes


Sister chromatids


Homozygous chromosomes

Homologous chromosomes

ML
Question 5 point
In squash fruit colour is determined by one gene and fruit shape is determined by another
independently assorting gene. The white fruit allele (W) is dominant over the yellow fruit
allele (w) and the disk-shaped allele (D) is dominant over the round-shaped allele (d).

, If a plant has the following genotype, Wwdd, which of the following gametes would be
produced? Select all that apply:

wd


WD


wD


dd


Ww

Wd

Question 0/1
6 point
In squash fruit colour is determined by one gene and fruit shape is determined by another
independently assorting gene. The white fruit allele (W) is dominant over the yellow fruit
allele (w) and the disk-shaped allele (D) is dominant over the round-shaped allele (d).
If a plant has the following genotype, wwDD, which of the following gametes would be
produced? Select all that apply:

wd


WD

wD


Wd


ww


DD

Probability
Question 7 point
In a family of four children what is the probability that the first born
child is a female and the 2nd, 3rd, and 4th children are all males?

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