3.1. Mary
There are no matching bands/bars/pattern/DNA profile with both parents - NSC Life Sciences - Question 3 - 2017 - Paper 2
Question 3
3.1. Mary
There are no matching bands/bars/pattern/DNA profile with both parents.
-------------------------------------------------
3.2
3.2.1 Three
3.2.2 A¹ an... show full transcript
Worked Solution & Example Answer:3.1. Mary
There are no matching bands/bars/pattern/DNA profile with both parents - NSC Life Sciences - Question 3 - 2017 - Paper 2
Step 1
Mary
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The individual being referred to is Mary, who does not have matching bands or bars in her DNA profile when compared with both parents.
Step 2
Three
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The answer is three, indicating the number of potential traits or phenotypes considered.
Step 3
A¹ and B²
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The phenotypes A¹ and B² relate to the blood group genetics involved in the inheritance patterns discussed.
Step 4
An individual inherits one allele from each parent
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
In detail, it is important to note: the Y chromosome comes from the father while the recessive allele Xᵗ is inherited from the mother. This results in the offspring potentially being haemophiliac depending on these alleles.
Step 5
Determine time/day to collect data
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This step involves selecting a specific area on the island where finches are located and collecting a representative sample of birds from the same species. Measuring and documenting their beak sizes before and during the drought is crucial for understanding environmental impacts.
Step 6
Range (9.8 - 10.3) mm/larger
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The range indicates the measurements of the beaks as they relate to survival and environmental change.
Step 7
Cloning
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Cloning is a method of reproduction that can involve cells or organisms with identical genetic material.
Step 8
Oogenesis/gametogenesis/meiosis
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This refers to the specific processes by which eggs are formed in females, involving the meiotic division of germ cells.
Step 9
The donor horse has the desired characteristics
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Potentially desirable traits must be identified and present in the offspring to ensure effective cloning.
Step 10
The nucleus contains all the genetic information
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
It is essential to highlight that the nucleus of the donor cell holds the complete genetic blueprint necessary for offspring development.
Step 11
64
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The answer to (a) is 64.
Step 12
32
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
For (b), the answer is 32.
Step 13
64
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The response to (c) is also 64.
Step 14
The gamete is generally haploid
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This implies that the egg cell is haploid, while the ovum is diploid as it contains the nucleus from a somatic cell.
