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- Q 1/25Score 0
Where are the alleles for each parent written when using a Punnett square?
29in the top two squares of the grid
only at the bottom of the grid
in the bottom two squares of the grid
across the top and along the side of the grid
- Q1
Where are the alleles for each parent written when using a Punnett square?
in the top two squares of the grid
only at the bottom of the grid
in the bottom two squares of the grid
across the top and along the side of the grid
120s - Q2
If a black circle represents a mother with the homozygous recessive genotype, what is the father's genotype?
The offspring are all different from the parents.
The parents are both heterozygous for the expressed genes.
The parents both have the same genetic structure.
The father is heterozygous for the trait.
120s - Q3
What substances combine to form a nucleotide?
uracil and a sugar
a nitrogen base, a phosphate group, and a sugar
a nitrogen base and two phosphates
guanine and a nitrogen base
120s - Q4
What is the process Mendel used to pollinate flowers of white plants with pollen from purple plants?
genetics
polygenic inheritance
cross-pollination
mitosis
120s - Q5
Which of these is a trait that is determined by a combination of multiple genes?
incomplete dominance
recessive alleles
DNA
polygenic inheritance
120s - Q6
What does the TT represent in this Punnett square?
a single allele
a heterozygous trait
a genotype consisting of two dominant alleles
a genotype consisting of two recessive alleles
120s - Q7
The structure of DNA is described as a ___ formed by two strands of nucleotides.
single spiral
protein molecule
double helix
polymerase chain
120s - Q8
What is the role of junk DNA on human chromosomes?
to regulate body temperature
It may not have an important function.
to pass traits to offspring
to determine dietary habits
120s - Q9
Which of these describes how an organism looks?
its genotype
its probability
its hybrid
its phenotype
120s - Q10
Which of these is not one of the nitrogenous bases in ๐ฟ๐๐ผ nucleotides?
adenine
uracil
guanine
thymine
120s - Q11
Rosalind Franklin and Maurice Wilkins are credited with what research?
X-rays of the DNA molecule
nucleotides
genetic inheritance
RNA
120s - Q12
Which is a tool that is used to predict genetic crosses?
a slide rule
a Venn diagram
a tally sheet
a Punnett square
120s - Q13
In this cross of two plants what will be the genotype of the offspring?
Three fourths of the offspring will have the same genotype as the parents.
None of the offspring will have the same genotype as the parents.
One half of the offspring will have the same genotype as the parents.
The offspring will all have the same genotype as the parents.
120s - Q14
________ studies how traits are inherited though the interactions of alleles.
Regeneration
Genetics
Mitosis
Probability
120s - Q15
Which is an example of the ๐ฆ๐ฏ๐ท๐ช๐ณ๐ฐ๐ฏ๐ฎ๐ฆ๐ฏ๐ต affecting the phenotype of an organism?
Pink flowers grown from parents with white flowers and pink flowers.
Tall pea plants come from tall plant parents.
An animal has an albino offspring.
In acid soil hydrangea plants produce blue flowers.
120s
