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Ch. 11 Bio Test
Terms in this set (50)
Branch of biology that studies heredity and genes
Who is the Austrian monk that is referred to as the father of genetics?
What principle states that during gamete formation genes for different traits are inherited independently of each other?
Principle of independent assortment
Roan cattle show codominance for white and red hair color. What would a heterozygous roan bull to look like if the trait showed incomplete dominance instead of codominance?
It would be pink
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be
Situations in which one allele for a gene is not completely dominant over another allele for that gene are called
A cross of a black chicken (BB) with a white chicken (WW) produces all speckled offspring (BBWW). This type of inheritance where both genotypes and phenotypes are shown is known as
Variation or differences in human skin color is an example of
If an organism's diploid number is 12, its haploid number is
Gametes such as sperm and egg are produced by the process of
What is shown in Figure 11-4?
When Gregor Mendel crossed a tall plant with a short plant, the F1 or first generation plants inherited
One allele from each parent
Which sex chromosomes represents a female?
How many total chromosomes are shown in a normal human karyotype or chromosome map?
According to Figure 11-1, what is the approximate probability that a human offspring will be female?
Sex-linked genes are located on
Both the X chromosome and the Y chromosome
In Figure 11-2, if a man that is heterozygous for blood type A and a woman that is heterozygous for blood type B produce an offspring, what might be the offspring's blood type?
A, B, AB, or O
The trait in pedigree in Figure 11-5 has two alleles: A (dominant) and a (recessive). The black symbols show the dominant phenotype, and the white symbols show the recessive phenotype. What is the genotype of the great grandfather?
What determines the color of western white butterflies?
Exposure to sunlight and genes
If a pea plant's alleles for height are tt,
Both parents contributed a recessive allele
The number of chromosomed in a gamete that indicates diploid or haploid is represented by the symbol
At the end of meiosis, there are
Four haploid daughter cells
A tall plant (TT) is crossed with a short plant (tt). If the tall F1 pea plants are allowed to self-pollinate and mate again,
The offspring can be tall or short
When you flip a coin, what is the probability that it will come up tails?
The principles of probability can be used to
Predict the traits of the offspring of genetic crosses
A heterozygous tall (Tt) pea plants is crossed with a short (tt) plant. The probability that an F1 plant will be tall is
Gregor Mendel's principles of genetics apply to
Organisms that have two identical alleles for a particular trait are said to be
Heredity is the passing on of characteristics from
Parents to offspring
Traits are characteristics that are inherited from parents.
Traits can be controlled by more than one gene.
Codominance occurs when neither allele is dominant over the other.
Incomplete dominance occurs when BOTH alleles are dominant and have full effect.
Many genes exist in several different forms and are said to have multiple alleles.
If you crossed two heterozygous tall plants (Tt x Tt), how many of the offspring will also be heterozygous?
A woman with Type O blood and a man who is Type AB are expecting a child. What are the possible blood types of their child?
In a certain species of pine trees, short needled (S) are dominant to long needles (s). According to the Punnett square, what is the probability of an offspring having long needled?
What proportions/percent of the male children are colorblind?
The genotype, ii, is used to display O blood type.
The physical characteristics of the particular trait is the
Cells that have one set of chromosomes in a cell and are labeled as 1n are considered
Cells that have two sets of chromosomes in a cell and are labeled as 2n are considered
A tetrad is formed when 2 homologous chromosomes are attached together.
Based on this karyotype or chromosome map, is this person a male or a female?
Unlike mitosis, meiosis resultd in the formation of
Haploid cells are labeled as which letter?
Meiosis II happens in between letters
C and D
What is formed at the end of meiosis?
Four genetically different sex cells
The correct order for the stages of mitosis is
Prophase, metaphase, anaphase, telophase
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