1) If the egg with two copies of chromosome 21 were fertilized by a normal sperm...
1) If the egg with two copies of chromosome 21 were fertilized by a normal sperm how many copies of chromosome 21 would there be in the zygote?
2) How many copies of chromosome 21 would there be in each cell in the embryo that developed from this zygote?
Homework Answers
1. There will be three copies of chromosome 21. This is because the two copies of chromosome 21 fails to separate and both instead of one is incorporated in the sperm resulting in cell that has 24 chromosome instead of 23.
2. Each cell in the embryo developing from zygote having three copies of chromosome 21, will have trisomy (three copies) for chromosome 21. As a result such embryo will develop down syndrome.
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1) If the egg with two copies of chromosome 21 were fertilized
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о му е Question Help Cours The mean incubation time for a type of fertilized egg...
о му е Question Help Cours The mean incubation time for a type of fertilized egg kept at a certain temperature is 23 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. Complete parts (a) through (e) below. Assig (b) Find and interpret the probability that a randomly selected fertilized egg hatches in less than 21 days. Stude The probability that a randomly selected fertilized egg hatches in less than 21 days...
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4. The mean incubation time for a type of fertilized egg kept at a certain temperature is 22 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 1 day. Complete parts (a) through (e) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) Draw a normal model that describes egg incubation times of these fertilized eggs. Choose the correct...
please help
D) Egg A was fertilized internally and egg WUJU In which part of a flower do both meiosis and fertilization occur? D) petal A) ovule C) anther B) stigma During the normal meiotic division of a diploid cell, the change in chromosome number that is represented by A) nn B) 4n-n C) 2n--n D) 2n-4 For the Riven phrase, choose the term that is best described by that phrase. the entire process of growth and maturation following birth...
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о му е Question Help Cours The mean incubation time for a type of fertilized egg kept at a certain temperature is 23 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. Complete parts (a) through (e) below. Assig (b) Find and interpret the probability that a randomly selected fertilized egg hatches in less than 21 days. Stude The probability that a randomly selected fertilized egg hatches in less than 21 days...
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