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2 years ago

A dog called the Maltese doesn't shed. This type of dog most likely came about through _____.

Biology

1 answer:

barxatty [35]2 years ago

6 0

Answer:

Selective breeding.

Explanation:

Humans have long bred animals, and especially, dogs, in order to create organisms with more desirable characteristics. A dog that doesn't shed hair sounds like a particularly desirable characteristic for any pet owner that keeps their dogs in the house, and therefore makes it more likely that the Maltese was deliberately designed to have this characteristic through selective breeding.

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Animals who eat the same food are categorized in the same niche. <br> a. True<br> b. False

Lelu [443]

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2 years ago

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What are the phases in meiosis and explain

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Cell division happens twice during meiosis. One starting cell can produce for gametes (eggs or sperm.) In each round of division, cells go through four phases called prophase, metaphase, anaphase, and telophase.

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metaphase This is where the 23 remaining chromosomes become attached to the spindle fibers.

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2 years ago

A woman with type A blood (whose father was type O) has children with a man that has type O blood. Both individuals are heterozy

Fantom [35]

Answer:

Explanation:

A woman with type A blood (whose father was type O) meaning her genotype is AO mates with

Man that has type O blood (OO genotype)

Both are heterozygous for MN blood group and both also heterozygous for the FUT1 gene controlling the synthesis of the H substance (Hh)- which determines the expression of the A and B antigen.

Cross

A O M N H h

O AO OO M MM MN H HH Hh

O AO OO N MN NN h Hh hh

Type A- 1/2 O-1/2 type M- 1/4 MN-1/2 N- 1/4, type H- 3/4 h-1/4

Type A with M antigen:

1/2*1/4*3/4 = 3/32

Type A with M and N antigens:

1/2*1/2*3/4 = 3/16

Type A with N antigen:

1/2*1/4*3/4 = 3/32

Type O with M antigen:

1/2*1/4*3/4= 3/32

Type O with M and N antigens:

1/2*1/2*3/4 = 3/16

Type O with N antigen:

1/2*1/4*3/4 = 3/32.

The 3/4 value comes from the expression of Hh-3/4 (this determines if the A and B Angie will be expressed).

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3 years ago