Questions (2556)

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2401
The amount of DNA in a mammalian cell in early prophase 1 is X. What is the amo…
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2402
The DNA content of a non-dividing diploid cell in the G1 phase of the cell cycl…
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2403
During meiosis, synapsis occurs in the: A. Leptotene B. Zygotene C. Pachytene D…
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2404
The paired up chromosomes at prophase I are often described as: a. Bivalents b.…
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2405
How many chromatids would you expect in 4 bivalents? A. 4 B. 16 C. 2 D. 8
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2406
How many centromeres would you expect in 4 bivalents? a. 2 b. 16 c. 4 d. 8
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2407
Chiasma process is evident in: a. Telophase b. Prophase I c. Prophase II d. Tel…
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2408
Pachytene takes place during which stage of meiosis? A. Prophase I B. Prophase …
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2409
During meiosis, when the meiotic spindles distribute chromosomes with errors to…
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2410
The formation of chiasma(ta) is an important feature of meiotic divisions becau…
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2411
Recombination via crossing over occurs during this stage: a. Anaphase I b. Prop…
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2412
During chromosomal pairs align along spindle equator: A. Anaphase II B. Anaphas…
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2413
By the end of this phase, the number of homologous chromosomes is reduced in ha…
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2414
The arrival of homologous chromosomes at opposite poles marks the end of: A. Mi…
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2415
Reduction in chromosome number occurs at the end of: a. Telophase II b. Telopha…
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2416
Meiosis II is similar to which process: a. meiosis I b. outcrossing c. mitosis …
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2417
Which of these does occur in meiosis II: a. centromeres divide b. homologous ch…
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2418
At this phase, each daughter cell nucleus has one set of chromosomes (1n): A. T…
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2419
How many of 160 F2 offspring from a monohybrid cross of a true breeding tall an…
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2420
Which of the following is true of meiosis? a. Tetrads form chiasmata during pro…
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2421
The restoration of the chromosome number after halving by meiosis in sexually r…
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2422
Chromosomes of the same type are said to be: A. haploid B. allelomorphs C. homo…
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2423
A chromatid is: a. a chromosome found in bacteria b. a replicate of chromosome …
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2424
A chromosome with a J-shaped anaphase configuration is most likely: a. telocent…
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2425
A chromosome with no centromere is called: a. Sub-metacentric b. Holocentric c.…
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2426
A chromosome with a diffused centromere that makes it have centromeric effect a…
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2427
A chromosome with two centromeres is called: a. Sub-metacentric b. Acentric c. …
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2428
In humans, how many pairs of chromosomes constitute the autosomes? A. 46 B. 23 …
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2429
How many autosomes are found in a normal human karyotype? a. 22 b. 44 c. 23 d. …
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2430
Normal human gametes contain how many chromosomes? a. 46 b. 44 c. 23 d. 22
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2431
How many sex chromosome(s) is/are present in a man's sperm cell? A. 1 B. 2 C. 2…
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2432
The sex-determination system in which males are XY and females XX is found in a…
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2433
What is the probability that the zygotes of a dizygotic twin will be males? A. …
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2434
In chromosomal sex determination, which of the following is homogametic? A. Mal…
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2435
The sex of a child is usually determined by: A. Mother's phenotype B. father's …
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2436
A human cell containing 22 autosomes and a Y chromosome is: A. a somatic cell o…
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2437
Which shows the sex chromosomes in the body cells and in the sex cells in a man…
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2438
What do all human inherit from their mother? a. mitochondrial DNA b. Y chromoso…
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2439
The syndrome in humans in which an individual's somatic cells contain the three…
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2440
In humans, an individual with an XXY chromosomal complement will develop as: A.…
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2441
A Patient with Turner syndrome is expected to have chromosome compliments of: A…
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2442
The syndrome in humans in which an individual's somatic cells contain the three…
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2443
Down syndrome is also called: a. Trisomy 21 with 47 autosomes b. Trisomy 21 wit…
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2444
A normal human female has 46 chromosomes. How many chromosomes will be found in…
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2445
Down syndrome occurs mostly due to non-dysfunctional occur during M phase of th…
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2446
The genetic factors responsible for creating the measurable properties of an or…
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2447
The different forms of a gene in a sperm cell are called: A. Gene isomers B. Ge…
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2448
Individuals carrying two identical alleles are said to be: A. Diploid B. homozy…
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2449
What does it mean to say that the characteristic of an organism is heritable? T…
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2450
The chromosome theory of inheritance states that: a. chromosomes assort indepen…
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2451
Mendel's first law of inheritance describes: A. independent assortment of diffe…
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2452
A parent genotype with homozygous composition will produce how many types of ga…
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2453
How many different combinations of maternal and paternal chromosomes can be pac…
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2454
When a homozygote for one allele is crossed with a homozygote for another allel…
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2455
Following Mendel's law, what would the phenotypic ratio of a homozygous pea cro…
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2456
In a certain plant, the allele for white fruit W is dominant over the allele fo…
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2457
A heterozygous, brown-eyed woman and blue-eyed man have a child, if the allele …
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2458
A female fruit fly with short wings mates with a male with long wings, all the …
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2459
When the presence or absence of an allele in one locus affect the expression of…
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2460
Wild type refers to: a. the most common phenotype thought to be found in the na…
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2461
The ability to taste PTC is a trait: A. dominant B. recessive C. sex controlled…
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2462
How many types of alleles control traits in ABO blood group? a. 1 b. 3 c. 2 d. 4
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2463
How many types of antigens are in ABO blood group? a. 1 b. 3 c. 2 d. 4
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2464
How many genotypes are produced by the 4 human blood groups: A, B, AB and O? A.…
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2465
Which combination of blood groups of a couple will produce children with all po…
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2466
A child with blood group genotype IAIB is born of a woman with genotype IBIB. T…
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2467
A couple with normal skin colour has an albino son who resembles the mother. Th…
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2468
Partial colour blindness is also commonly known as: A. red-blue B. red-green C.…
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2469
In humans, red-green colour blindness is an X-linked recessive trait. If a man …
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2470
Haemophilia is caused by a sex-linked, recessive allele. Two parents have a hae…
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2471
Mary's father has haemophilia, an X-linked recessive trait, but her husband doe…
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2472
If a mother is a carrier for haemophilia (an X-linked disorder) and the father …
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2473
Which of the following is FALSE about X-linked recessive disease? A. Males have…
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2474
What is the probability that a male child will inherit an X-linked recessive al…
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2475
If a human baby boy inherits a recessive allele from his mother, in which circu…
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2476
Joseph expressed hypertrichosis (hairy pinna), a trait carried by a gene on his…
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2477
A family has three daughters. The mother is pregnant for the fourth time. What …
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2478
Which of the following is an example of genetic variation? A. Two children have…
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2479
Which of the following is an example of environmental variation? A. Ayo is a to…
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2480
"Endoplasmic" means "within the __________."
Cell Structure and Function View
2481
"Reticulum" is Latin for "__________."
Cell Structure and Function View
2482
The number of mitochondria relates to the cell's __________ requirement.
Cell Structure and Function View
2483
Cells with high energy needs include muscle, sperm tails, __________, and cilia.
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2484
The four mitochondrial compartments are: Outer membrane, __________ space, Inne…
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2485
The __________ membrane is the site of electron transport and oxidative phospho…
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2486
The __________ contains enzymes for the TCA cycle and fat oxidation.
Cell Structure and Function View
2487
Mendel studied the inheritance of _____ character(s) at a time in most of the e…
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2488
If a DNA strand has nitrogenous base sequence ATTGCC, the mRNA will have:
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2489
The physical expression of a trait is the _____ of the individual.
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2490
How many pairs of autosomes are found in a normal human cell?
BIO 101 Test Prep View
2491
What is the purpose of a control in an experiment?
BIO 101 Test Prep View
2492
Which of the following statements describes inductive reasoning?
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2493
What does the term "structure fits function" imply in Biology?
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2494
What is the genotype of an individual who is heterozygous for a trait?
BIO 101 Test Prep View
2495
The paired up chromosomes at prophase 1 are often described as:
BIO 101 Test Prep View
2496
Deficiency of vitamin __________ causes scurvy
BIO 101 Past Questions View
2497
Conversion of elemental nitrogen into absorbable compounds of nitrogen is _____…
BIO 101 Past Questions View
2498
Indicates pregnancy.
BIO 101 Past Questions View
2499
According to the source material, why is the first semester of university consi…
BIO 101 Past Questions View
2500
What primary benefit does consistent attendance at lectures and tutorials provi…
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