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29 Nov 2019

what is a karyotype and what types of chromosomes are displayed? how are they arranged?

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Reid Wolff
Reid WolffLv2
17 Dec 2019
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Related questions

21.

Which cell is most likely to be diploid?

zygote

oocyte (egg)

spore

sperm cell

22.

Some fungi spend most of their life cycle as haploids.

True

False

23.

A _____ is when the chromosomes in a cell have been stained and arranged in order.

phenotype

DNA fingerprint

karyotype

genotype

24.

In most cells of mammals, one X chromosome is normally inactivated in most______.

males

neither males nor females.

females

both males and females

What is the purpose of the Control Probe? Suppose you are a genetic counsellor and perform the FISH test on a newborn child. What is your interpretation if (1) The karyotype shows binding of both the control and elastin probes to only one chromosome, or (2) the karyotype shows binding only of the elastin probe, (a) to one chromosome only, or (b) two both chromosomes, or (3) The karyotype does not show binding of either the control or elastin probes. refer to http://www.mun.ca/biology/scarr/Williams_Syndrome.html

Q. While working in a pathology lab, you are presented with an ovine blood sample (2n=54) that is suspected to have a genetic abnormality. You decide to karyotype the sample and diagnose monosomy 25. Assume two hypothetical genes A and B are located on chromosomes 24 and 25 respectively. How many alleles for each gene will be present in the Primary oocyte, secondary oocyte and ovum that produced the animal with the abnormal karyotype?

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