Question

In: Biology

1. Of the following events, which occurs last during meiosis and the preceding interphase in a...

1. Of the following events, which occurs last during meiosis and the preceding interphase in a male?

a)	The X and Y chromosomes replicate

b)	The X and Y chromosomes pair

c)	The X and Y chromosomes separate

d)	The Y sisters separate

2.

Of the following events, which occurs first during meiosis and the preceding interphase in a male?

Question 10 options:

a)	The Y sisters separate

b)	The X and Y chromosomes separate

c)	The X and Y chromosomes pair

d)	The X and Y chromosomes replicate

3.

An XYY individual could result from non-disjunction in

Question 11 options:

a)	Meiosis 1 of that individual's Mother

b)	Meiosis 2 of that individual's mother

c)	Meiosis 2 of that individual's father

d)	Meiosis 1 of that individual's father

4.

An XXY individual could not result from non-disjunction in

Question 12 options:

a)	Meiosis 1 of that individual's father

b)	Meiosis 2 of that individual's father

c)	Meiosis 1 of that individual's Mother

d)	Meiosis 2 of that individual's mother

e)	It could result from any of the above

Expert Solution

1. events, which occurs last during meiosis and the preceding interphase in a male is

Ans - d) The Y sisters separate

Separation of Y sister chromatids is the last event that happen during meiosis Ii prior to interphase.

2. events, which occurs first during meiosis and the preceding interphase in a male is

Ans - c) The X and Y chromosome pair

Preceding interphase the 1st step to occur in meiosis in males is tha pairing of X and Y chromosomes. During prophase I they pair and later separate at telophase I.

3. An XYY individual could result from non-disjunction in

Ans - c) Meiosis 2 of that individual's father

As it contain two Y chromosome the non disjunction must have taken place in the father. Gete with double Y chromosome will be produced if there is any non disjunction in meiosis 2.

4. An XXY individual could not result from non-disjunction in

Ans - b) Meiosis 2 of that individual's father

Non disjunction in meiosis 2 of father will produce two types of gametes XX or YY. They will give rise to either XXX or XYY when mated with normal egg. So XXY can never be produced in this case.

gladiator answered 5 months ago

Which of the following events occurs during transcription?

Part A Which of the following events occurs during transcription? Those segments of the RNA strand that do not actually code for the protein are removed. A molecule of RNA is formed based on the sequence of nucleotides in DNA. The message in mRNA is translated into a protein. A cap is added to the RNA molecule. mRNA binds to a ribosome in the cytoplasm. Part B Which of the following is a correct statement about mRNA? mRNA binds...

Which of the following occurs in meiosis II but not meiosis I? Select one: A. homologous...

Which of the following occurs in meiosis II but not meiosis I? Select one: A. homologous chromosomes pair B. homologous chromosomes cross-over C. homologous chromatids separate D. all of the above E. none of the above

The duplication of the genetic content in a cell occurs during what part of interphase? a.Mitosis...

The duplication of the genetic content in a cell occurs during what part of interphase? a.Mitosis b.G1 phase c. S phase d. G2 phase

Which of the following occurs in meiosis but not in mitosis? Select one: Chromosome replication Formation...

Which of the following occurs in meiosis but not in mitosis? Select one: Chromosome replication Formation of Chiasmata Production of daughter cells Attachment of chromosomes to the kinetochore microtubule Alignment of chromosomes at the equator 5. X (sex)-linked inheritance for conditions like hemophilia is unique because: Select one: there are multiple alleles involved the Y chromosome has few genes the female parent always carries the dominant allele both parents are always carriers the alleles for the disorder are quantitative 6....

What is nondisjunction? What are the consequences if nondisjunction occurs during meiosis I?

What are the three phases of interphase. Briefly what occurs during each stage. Contrast cytokinesis in...

What are the three phases of interphase. Briefly what occurs during each stage. Contrast cytokinesis in plants vs. animals. Describe where the three checkpoints are in the cell cycle. What happens in the G0 phase? Why do cancer cells divide uncontrollably? Contrast benign with malignant tumors.

Which of the following events occurs in the animal virus life cycle, but NOT in the...

Which of the following events occurs in the animal virus life cycle, but NOT in the bacteriophage life cycle? Check all that apply. Formation of a pro-virus Release by budding Uncoating Use of host cell ribosomes to synthesize viral proteins Biosynthesis Assembly of new virus particles Viral capsid enters into the host cell Lysis

1) Write in order the sequence of events that occurs during muscle contraction. Begin in the...

1) Write in order the sequence of events that occurs during muscle contraction. Begin in the brain and include all action in the muscle. You can write it out like a flow chart, one action followed by the next. 2.The function of the T tubules is to _________. A) Store Ca2+ inside the muscle fiber. B) Rapidly conduct action potentials to the interior of the muscle fiber. C) To store neurotransmitter D) Conduct ATP molecules out of the mitochondria throughout...

1) If nondisjunction occurs during meiosis II, what type of gametes would be expected? 2) Sex...

1) If nondisjunction occurs during meiosis II, what type of gametes would be expected? 2) Sex determination in Ewoks is similar to humans - female Ewoks have two X chromosomes and males have one X and one Y chromosome. A gene on the X chromosome determines eye color, where the dominant allele XB gives produces black eyes and the recessive allele Xb produces hazel eyes. Two black eyed parents have a hazel eyed son. If they have two additional children,...

1. Name five differences between mitosis and meiosis. 2. During meiosis, which two processes occur that...

1. Name five differences between mitosis and meiosis. 2. During meiosis, which two processes occur that can increase genetic variation in the gametes? A. independent assortment and crossing over B. crossing over and cytokinesis C. separation of the sister chromatids in Anaphase I and cytokinesis D. independent assortment and cytokinesis E. cytokinesis and sexual reproduction