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Basic Genetics

Total questions: 5

Worksheet time: 3mins

Name
Class
Date
1.

Homologous chromosomes contain the same genes for the same traits at the same loci.

同源染色體在相同基因座包含相同特徵的相同基因

a)

True

b)

False

2.

A                allele determines the phenotype even when only one copy is present.

________等位基因決定了表型,即使只有一個拷貝存在。

a)

dominant

顯性

b)

recessive

隱性

c)

co-dominant

共顯性

d)

homozygous

同型結合

3.

In the following genetic cross, Pp x Pp, what percentage of the offspring will have a recessive phenotype?

在Pp x Pp的遺傳雜交中,多少百分比的後代將具有隱性表型?

a)

0%

b)

25%

c)

50%

d)

75%

4.

Sex-linked genes are found on                                  

性連鎖基因存在於________

a)

the X chromosome only

只在X染色體

b)

the Y chromosome only

只在Y染色體

c)

either the X or the Y chromosome

X或Y染色體

d)

the autosomes

體染色體

5.

A triploid organism would have                copies of all genes

三倍體生物將具有所有基因____個副本

a)

1

b)

2

c)

3

d)

4