問題一覧
1
The study of genes at the level of atoms and molecules
MOLECULAR GENETICS
2
Phenotype AB
B. Codominant
3
When dominant alleles are present but fail to show up as a phenotype, the condition is termed as?
B. Incompletely penetrant
4
Unicellular organisms whose cells lack a nucleus and therefore have DNA floating loosely in the liquid center of the cell.
B. Prokaryotes
5
Which of the following statements is/are true regarding chromosome disorder?
A. Chromosome disorder can originate from abnormalities with chromosome structure
6
A pair of chromosomes that consists of XY is a
A. Male
7
Characteristics such as hair, eyes, or skin color is a _______
C. Phenotype
8
refers to non-sex chromosomes. Sticking with the human example, if you do the math, you can see that humans have 44 autosomal chromosomes. Your autosomal chromosomes are identified by numbers — 1 through 22 — and are generally arranged based on size, with chromosome 1 being the largest and chromosome 22 being the smallest.
Autosomal chromosomes
9
If someone only has one X chromosome and no Y chromosome in their somatic cells, they:
B. have turner syndrome
10
Prokaryotic cells reproduce by:
A. Binary fission
11
LIS stands for?
C. Laboratory Information System
12
A trait one that manifests itself even when an allele is an heterozygous state.
A. Dominant
13
– the genetic composition of the individual.
C. Genotype
14
Which of the following types of RNA is known for its catalytic abilities?
C. rRNA
15
Refers to a condition wherein an organism has extra chromosomes or is missing chromosomes.
B. Aneuploidy
16
Also known as array comparative genomic hybridization (aCGH).
C. Microarray analysis
17
What are the stages of mitosis arranged in order?
A. Interphase- Prophase- Metaphase- Anaphase- Telophase
18
A pair of chromosomes that consists of XX is a
B. Female
19
Site of protein synthesis?
B. Ribosome
20
two alleles having a different nucleotide sequence, which may be caused by mutations.
B. heterozygous
21
Chromosome disorders affecting males can be due to abnormal number of ___________
C. both X & Y
22
Phenotype AO
C. Dominant-recessive
23
A study of the change in alleles and genetic variation in a group of organisms.
POPULATION GENETICS
24
Which of the following may use RNA as its genome?
D. Virus
25
Trait-when the mutant allele is located on the X chromosome (Male) and Y chromosome for (Female).
A. Sex linked trait
26
Chromosomal abnormality that causes a man to have a sexual to feminine body contours with large breast, small penis, testes and prostate gland; relatively little body hair; and sterility is;
A. Klinefelter Syndrome
27
two alleles being identical
A. homozygous
28
Which of the following statements is true of sex chromosome abnormalities in humans?
A. They usually have mild effects and are rarely fatal
29
Ribosomes are composed of rRNA and what other component/
A. Proteins
30
This the basic physical and functional unit of heredity.
A. Gene
31
A condition in which a chromosome abnormality is present in some cells of the body but not all.
D. Mosaicism
32
Major site of ATP synthesis when oxygen is available.
E. Mitochondria
33
There are 4 main blood groups A, B, AB, and O. Your blood group is determined by the genes you inherit from your parents. Type AB blood is expressed by:
B. Codominance
34
Are threadlike strands composed of DNA. To pass genetic traits from one generation to the next, the chromosomes must be copied, and then the copies must be divied up.
D. Chromosomes
35
Patients with Fanconi anemia manifest low RBC, WBC, and platelets count
A. The statement is correct
36
Your genome is contained in 23 pairs of chromosomes (for a total of 46 chromosomes in every cell). Home to most eukaryotic organism's DNA.
Nucleus
37
It is the probability that an individual having a dominant allele will show the associated phenotype.
A. Penetrance
38
These chromosomes determine sex — male or female. Human cells contain two sex chromosomes. Females should have two X chromosomes, while males should have an X chromosome and a Y chromosome.
Sex chromosomes
39
Test performed to diagnose and confirm Williams Syndrome?
A. Fluorescence in situ Hybridization (FISH)
40
Examples of chromosomal mutations are ________?.
D. All of the above
41
How traits are transmitted from one generation to the next. What law is this?
C. The Laws of Inheritance
42
A nucleic acid is purified from a mixture. The molecules are relatively small, contain uracil, and most are covalently bound to an amino acid. Which of the following was purified?
B. tRNA
43
If an individual only has one X chromosome and no Y chromosome in their somatic cells, this individual has?
B. Turner Syndrome
44
Male sex chromosome abnormalities can be due to abnormal numbers of _______ chromosome
C. Either the X or the Y
45
– the capability to inherit a trait from a parent.
A. heritability
46
A procedure that displays the pairs of chromosomes in a cell is called?
B. Karyotype
47
Which of the following statements about sex chromosome abnormality is true?
B. They usually have mild effects and rarely are fatal
48
All of the ff are true except:
A. Humans have 43 pairs of chromosomes
49
Which of the following doesn't fit as a clinical description of Fanconi anemia?
A. Thrombocytosis
50
Which is the study of genes at the level of atoms and molecules?
B. Molecular Genetics
51
Which is the study of the change in alleles and genetic variation in a group of organisms?
C. Population Genetics
52
When the genotype consists of a dominant and a recessive allele, most of the time the phenotype will be like ______ allele.
A. The dominant