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Gwar [14]
3 years ago
11

Women have sex chromosomes XX, and men have sex chromosomes XY. Which of a woman's grandparents could not be the source of any o

f the genes on either of her X chromosomes?
Biology
2 answers:
lyudmila [28]3 years ago
5 0

Answer: The grand father could not be source of the woman XX chromosomes.

Explanation:

Female always have XX chromosomes and the male have XY chromosomes. A woman can only release X chromosome and a man can release either X or Y chromosomes. When a man release Y chromosomes and join to the female X chromosome, the offspring will be male but when a man release X chromosome, the offspring will be female.

sweet [91]3 years ago
3 0

Answer: her grandpa could not have been the source of either of her XX chromosomes.

Explanation: A male is the sole provider of the Y chromosome whereas females only have two XX's and no Y's

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Sam started his morning walk from the location indicated by the point below.
mel-nik [20]

Answer:

(-1,-3) on the coordinate grid.

Explanation:

The location from where Sam started his morning walk is 3 units to the left and 2 units up from the origin. This location is indicated by the point (-3,2).

He walked 5 units south and met his friend Joshua.

So, find the point that is 5 units to the south of point (-3,2). Distances north and south on the map represent a change in the y-coordinate. Moving 5 units to the south on the map from point (-3,2) places the new location at point (-3,-3).

Sam then walked 2 units east, where he met his friend, Ethan.

So, find the point that is 2 units to the east of point (-3,-3). Distances east and west on the map represent a change in the x-coordinate. Moving 2 units to the east on the map from point (-3,-3) places the new location at point (-1,-3).

So, Sam met Ethan at the location indicated by point (-1,-3) on the coordinate grid.

6 0
3 years ago
Read 2 more answers
In order to initiate transcription in eukaryotes, _______. View Available Hint(s) In order to initiate transcription in eukaryot
laila [671]

Answer:

transcription factors bind to the promoter, and RNA polymerase is then recruited to begin transcribing the gene

Explanation:

The transcription process in eukaryotes happens in 3 stages:

  1. Initiation
  2. Elongation
  3. Termination

The initiation of transcription starts when a set of proteins called the transcription binds to the promoter region of a gene on the coding strand of DNA. Thereafter, the RNA polymerase enzyme binds to the promoter region thereby opening up the double helix structure of the DNA in anticipation of transcription.

During elongation, RNA nucleotides are added to the growing RNA strand in 5' to 3' direction with the DNA unwinding and winding back as the polymerase moves along the coding strand in 3' to 5' direction.

Transcription terminates when the RNA polymerase gets to the end of the gene being transcribed signalled by a sequence of DNA known as the terminator.

<em>Hence, in the illustration, the correct answer would be that the transcription factors bind to the promoter, and RNA polymerase is then recruited to begin transcribing the gene.</em>

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2 years ago
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algol13

Answer: To increase the nitrogen in the soil Cleo can make compost to put in her garden

Explanation:

Some plants and foods put in compost produce nitrogen so making compost out of it and putting it in the soil would increase the amount.

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3 years ago
nitrogen cycles between the biotic and abiotic factors in a ecosystem which of the following organisms is primarily reponsible f
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Answer:

b

Explanation:

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Marble is _____
yan [13]

Answer: A

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