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swat32
2 years ago
15

Please help and explain the answer

Biology
1 answer:
velikii [3]2 years ago
3 0

Answer:

3a- the 1st one

Explanation:

3b- when comparing the genetic codes and looking for differences, the scientists could find the types of mutations that possibly happened, or different changes in the marine snails due to the rise of plastic waste in oceans.

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Fill in a Punnett Square for a heterozygous male parent and a heterozygous female parent. Male - X Female - Ee X Ee
anygoal [31]
It should look like that
5 0
2 years ago
Ralph has type B blood and his wife Rachel has type A blood. They are very shocked to hear that their baby has type O blood, and
Cerrena [4.2K]

Answer:

1. The parents genotypes could have been BO and AO

2. wire-hair

Explanation:

There are four possible blood types which are type A, B, AB, O. blood group is the classification of blood based on the presence or the absence of inherited antigenic substances on the surface of the red blood cells. They have hereditary basis and also rely on a series of alternative genes sometimes used in solving dispute of parental heritage. With the four possible blood groups, there are six possible genotypes and these are:

Blood type               possible genotypes

Type A                         AA, AO

Type B                         BB, BO

Type AB                           AB

Type O                              OO

Thus, for parents with blood type B and A to give birth to a child with blood type O, it means their genotype could have been both BO and AO  for them to be able to produce a child with OO. a cross between these two could give rise to OO.

Question 2

Wire hair is dominant (S) to smooth (s), thus wire hair could be in the homozygous (SS) and heterozygous form (Ss) and the smooth hair can only be expressed in the homozygous recessive form (ss).

thus, in a cross between homozygous wire haired and smooth haired, we will have:

homozygous wire haired            homozygous smooth haired

P gen              SS                x               ss

F1 gen.                                Ss

phenotype:                     wire haired

8 0
3 years ago
Help me please
nordsb [41]

Answer:

embryophytes

Explanation:

please let me know if this helped you

5 0
3 years ago
A scientist is studying the reproduction of four organisms and records information about each organism in a table.
seraphim [82]
If think about it if it was asexual then it came from 1 parent so it would be W
3 0
3 years ago
Read 2 more answers
What are the light gray lines in the graph showing? Provide examples.
BartSMP [9]

Answer:

the Grey line is the expect change and is where the temperature should be

Explanation:

the black line is where the temperature is and how much the temperature can fluctuate while still allowing the organism to live and do so comfortably

4 0
2 years ago
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