3 years ago

Please help!!!!!!!!!!!!!!!

Biology

1 answer:

sergiy2304 [10]3 years ago

3 0

Answer:

Explanation:

Brainliest?

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A family has a Y-linked disease that affects the father. What is the chance of a male offspring inheriting the same disease?

Leno4ka [110]

Answer:

100%

Explanation:

A sex-linked trait is a trait which is inherited on the sex chromosomes (X and Y chromosomes). This means that that trait is only inherited by offsprings of a particular sex. In this question, a family is said to have a Y-linked disease that affects the father.

Note that, Y chromosomes are only present in the male sex, meaning that a father will always transfer its Y chromosome to all his male offsprings. Since this disease (trait) is on the Y chromosome, it means that all male offsprings i.e. 100% of this father will have the disease.

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3 years ago

Which trait did Gregor Mendel examine from the pea plant when he planned his study?

Kryger [21]

Ur answer would be D

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3 years ago

Label each level of dna packaging in the eukaryotic chromosome with the appropriate term.

Lostsunrise [7]

I assume this photo has the labels you are talking about.

DNA double helix consists of two strands that wind around each other with their nucleotides liked.-> it's the structure number 5
nucleosome- it's a segment of DNA wound in sequence around eight histones (proteins)- number 2
Histone- proteins with DNA around them, forming the nucleosome- number 4
Tight helical fiber- chromatin <span>coiled very tightly- 3
Cromosome- </span><span>chromatin condensed even tighter forming a X shape.- 1</span>